284 CHAPTER 21 1959 Guide Air Duct Design 285 CU FT OF AIR PER MINUTE (Bamd en.

652 CHAPTER 46 1959 Guide cost of the equipment installed, and (2) it results in less de sirable humidity conditions within the residence because of. the increased size.

660 CHAPTER 47 1959 Guide Sajed on wind normal to expotore/ room 25 ft deop/ window* doMohtmg, 5 ft wide, 2 window/ opened at thown. fig. 3___ Typical Air Row in Classrooms with Natural Ventilation duct system, the air being delivered through wall grilles or ceiling diffusers, or by self-contained units within the rooms, such as unit ventilators and unit conditioners located at the outside walls.

^yZE^i UNOVENTILATOR' A Quality Schoolroom Heating-Ventilating System At Lowest Cost To Fit Almost Any Budget!

966 CHAPTER 68 Tens Text Blowings effective horsepower........................... efficiency.............................................. eff electromotive force............................. emf equivalent direct radiation................ evaporat(e) (-in$ -ed, -or)................................. expansion valve..................................

1951 Currant Safety Topics in tlie METALS INDUSTRY As yswy to Mw ^ --* ^ ^- ---- - mWWNNWmrn vT *1^ R9VW9 ' srt tte mi HattaaaI isfdyCiirMi The AmcricM Ps^Ugt..................................................... 5 Use of Directional Explosives lor Topping Open Hearth Fumaocs................................... 5 The Jet Topper Practice at the Open HeortSi...................

PART "A" Purpose and Applicable*.

f ; Officers of the GLASS AND CERAMICS SECTION NATIONAL SAFETY COUNCIL 1952-53 General Chairman--THOS.

Zc-UJ trial Hygiene Digest February. 1956 1*2 Annual Report of the Chief Inspector ot Factories tor the Tear 1953.

gnaugtrial Hygiene Digest February, 1956 ventilation, firat because carbon dioxide and moat toxic materials are heavier than air, aod aecood, becauae aatural diffusion la very alow.

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k f' V. r t . f IV .AiaMffiHsnsi -i ly.

AUDIO-VISVAL AIDS Closed-circuit TV has been employed to ad vantage in special situations involving ex treme hazards or through relay or by the use of several monitor sets, to multiply its effec tiveness However, most other visuals are less complicated to produce and employ.

Silica (Amorphous) Silica (Free) Sodium Chlorate Sbbine Styrene Monomer Sulfur Dioxide Sulfur Tnoxide Sulfunc Acid Teflon, Fluoro Resins, etc Tellurium Tetrachloroethylene Tetraethyllead Tetrahydrofuran Tetramtromethane Thorium and Its Compounds Titanium Titanium Dioxide Toluene (Toluol, Methyl Apr 1958 Sept 1957 Feb 1958 Dec I960 Rev Oct 1968 Dec 1955 Jan 1972 Sept 1957 Rev Apr 1963 Apr 1964 Rev Dec 1965 Aug 1963 June 1959 Oct 1964 Oct 1959 June 1959 Apr 1966 Benzene) June Toluene Dnsocyanate Rev Feb 1,1,1-Tnchloroethane (Methyl Chloroform) Rev Dec Tnchloroethylene Rev Feb Tnchlorofluoromethane Oct 1,1,2-Tnchloro-1,2-2- Tnfluoroethane Oct 2,4,6-Truntrotoluene Oct Tnorthocresylphosphate Oct Tnphenyl Phosphate June Turpentine June Uranium (natural) and its Compounds Rev June Vanadium Pentoxide June Vinyl Chloride Aug Xylene (Xylol, Di-methyl Benzene) Rev Oct Zinc Oxide Rev Aug Zirconium Oct 1957 1967 1961 1964 1968 1968 1964 1963 1970 1967 1969 1957 1964 1971 1969 1958 American Nabonal Standards Institute, 1430 Broadway, New York, N Y 10018 "Acceptable Concentrations," Z-37 Senes API Toxicological Reviews The American Petroleum Institute, 1271 Ave of the Amencas, New York, N Y Brown, H V "Behavioral Implications of Exposure to Industrial Chemicals " Journal of Oc cupational Medicine 55 E Washington St, Chicago 60602 November 1966 p 561 Browning, Ethel Toxicity of Industrial Metals 1961 Butterworths, London, England ---------- Toxicity and Metabolism of Industrial Solvents 1965 Elsevier Publishing Co, New York Cook, W A "Maximum Allowable Concentration of Industrial Atmosphenc Contaminants " Industrial Medicine, 1945, p 933 Documentation of Threshold Limit Values Amencan Conference of Governmental Industrial Hygienists, 1014 E Broadway, Cincinnati, Ohio 45202 DuBois, K P and Ceiling, E M K Textbook of Toxicology 1959 Oxford University Press, New York Elkins, H B The Chemistry of Industrial Toxicology John Wiley and Sons Inc, 605 Third Ave, New York 10016 1959 ----------, "Excretory and Biologic Threshold Limits " AIH A Journal, Vol 28, No 4, 1967 Fairhall, Lawrence T Industrial Toxicology, 2nd Ed, 1957 The Williams and Wilkins Co, Baltimore Fawcett, H H and Wood, W S Safety and Accident Prevention m Chemical Operations Interscience Publishers, 605 Third Ave , New York 10016 1965 Federal Radiation Council, Background Material foi the Development of Radiation Pro tection Standards, Report No 1, May 1960, Report No 2, September 1961 Available from Superintendent of Documents, U S Government Printing Office, Washington, D C 20402 Gafafer, W M, editor Occupational Diseases U S Public Health Service Bulletin 1097, U S Government Printing Office, Washington, D C 1964 Gerarde, Horace W Toxicology and Biochemistry of Aromatic Hydrocarbons D Van Nostrand Co , Inc , New York 10018 1960 1179

PLAINTIFF'S EXHIBIT l ACREKHEHT THIS AGREEMENT, made this day of March, 1952, by and between CHICAGO BELTING COMPANY, a corporation of DELAWARE, located at Chicago, Illinois, hereinafter referred to as "Applicant", and GRIZZLY MANUFACTURING COMPART, a corporation of California, located at Paulding, Ohio, hereinafter referred to ae "Opposer", WITNESSETH, THAT, WHEREAS, Applicant has applied for regietration of the trade mark "OLD GRIZZLY" for leather belting in Class 35, Belting,Hose, Machinery Packing, and Nonnetallic Tires, Serial No. 583*568 filed Auguet 17, 1949, under the Act of 1946, which trade mark was published Aunust 21, 1951, in the Official Caaette of the Patent Office, Toluae 649, No. 3, Page 646) and WHEREAS, Opposer filed a Notice of Opposition to said regis tration on September 18, 1951, as Opposition No. 30,852, which opposition is etill pending| and WHEREAS, Oppoeer is the owner and user of the trade marks "GRIZZLY", GRIZZLY SYNCRO-SET", GRIZZLY SAFTIDOND" and "GRIZZLY SILVERTIP" as its trade marks for brake lining and brake blocks, and has in the past used said trade mark "GRIZZLY" for rubber traneaission and conveyor belting and may wish to resume euch use thereon) and WHEREAS, Opposer is the owner of the following Certificates of Registration issued by the United States Patent Offices No. 312,067 dated April 17, 1934, republished under the Act of 1946, for the trade mark "GRIZZLY" for brake lining) No. 382,014 dated October 15, 1940, republished under the Act of 1946, for the trade mark "GRIZZLY STNCRO-SET" for brake lining) No. 439,639 dated July 6, 1946, for the trade nark "GRIZZLY SAFTIDOND" for brake lining) and -1- MAR 003388 WHEREAS, it is the desire of the parties to settle the opposi tion proceeding aforesaid, and WHEREAS, Applicant is willing to limit his registration and use of said trade mark "OLD GRIZZLY" solely to leather belting in Class 35, reserving its right to use the trade nark "OLD BRIZZLY" under Re gistration Ho. 530,147 for Textile Machinery Farts, namely - lugs, check atrape, buffer straps and harness straps in Class 23, and Oppoeer does not object to Applicant's use of said mark or to the issuance of said registration in view of such limitationf NOW, THEREFORE, for end in consideration of the mutual cov#' n&nts hereinafter set forth and their faithful performance, the parties hereto agree as follows!