C.

(b) (i) Approximately 1930; (ii) Not applicable; (iii) Not applicable; (c) For assemblies with lining segments manufactured by General Motors, see response to No. 7(c).

PLAINTIFF'S EXHIBIT i: o *; ; c MV;o-:mEI'Vl SNA6ENENT SYSTEM E?

Heating Systems ValTes, Air The Dole Valve Company Main Offices and Factory: 1933 Carroll Avenue, Chicago 12, HI.

PLAINTIFF'S EXHIBIT ";kE,ceived AIR HYGIENE FOUNDATION OF AMERICA ' IT?

CHAPTER 6 EFFECTIVE TEMPERATURE INDEX AND COMFORT ZONES There is no precise physiologic observation by which comfort can be evaluated.

1938 1939 No Record No Record ... .... ..r /. v y; V-- * .

industrial dentists, holds an annual meeting wherever the Industrial Health Conference is held, conducts tours of plants, publishes scientific papers, and issues an annual report of transactions Amencan Association of Industrial Nurses, Inc 170 E 61st St, New York.

As early as 1937 Caterpillar vas conducting research work to Identify operating characteristics of all knovm types of brake lining material.

March 21, 1939.

c CO??

Illinois ManUFA;^S^|iRS,Association '20 SOUTHfjij cf-iiCA'ap -> January 10th, 1935.

OF THE LEDQER Report for 1937 fo the Policyholders of Metropolitan Life Insurance Company THE HUMAN SIDE OF THE LEDGER /L Cj jl Metropolitan is a mutual Life insurance company, it is operated solely for the benefit of its 29 million policyholders.

TUMORS OF THE SKIN 163 This insures the removal of impurities and unsaturated hydrocarbons, and produces an oil suitable for high speed machinery and non-oxidizing in a highly humid atmosphere.

484 OCCUPATIONAL TUMORS AND ALLIED DISEASES different routes to the various aromatic amines (Grandhomme; Jaffe; Schwerinj Posner and Huldschiner} Fischerj Askanazy; Oppenheimer, 192619275 Adler} Henkel and others).