June 10, 1957 Mr, H, 8, Kilns, Director Industrial Hygiene and Sanitary Kaglnoarlag Frlgldaire Dirtslot- of Oeneral Motors, Ino, Dayton, Ohio Deer Friend High*.

C 051010242 1 Otherwise stated, identify what brake pads, 2 brake linings or brake facings went into which of your motor vehicles during the period 1950 3 through 1978; 4 Ik) State when and how you were first made aware of health hazards associated with the use of 5 asbestos; 6 (1) When did you first become aware that warnings were plaed on asbestos products with respect to 7 the health hazards associated with the use of asbestos; 8 (ra) When did you first learn in any manner or from 9 any source that asbestos or asbestos products are hazardous or dangerous to the health of 10 persons; 11 (n) From whom did you learn the information referred to in the answer to the preceding interrogatory; 12 (o) State what documents reflect the information 13 given in answer to the two preceding interrogatories, their date, and the present 14 custodian of said records; 15 (p) Did you at any time maintain or distribute manuals, instructions or information relating to 16 the sale, use or removal of asbestos or asbestos products, including, but not limited to, the use 17 or removal of asbestos-containing brake linings, brake pads or brake facings; 18 19 (q) If the answer to the preceding interrogatory is in the affirmative, state the present location 20 of records or other such materials and thename and address of the custodian of said manuals, 21 *. instructions, directories or information. 22 23 24 25 26 PLAINTIFF'S FIRST INTERROGS.

1952-1955 1955-1966 1955-1960 D Carlson J.

FINAL ARRAN08MENT of rebuilt scclionol-hcoder boiler.

More TECHNICAL BRIEFS.

4 These three views show details of a 1500-hp pipeline compressor station with one unit.

More EQUIPMENT NEWS.

Why This R-P&C Valve Suits the Power industry This cast steel R-P&C Gate Valve with pressure sealed bonnet provides continuous tightness when exposed to the varying con ditions of high pressure steam generation.

lorgotl "S" Monti Pump Impollor ever colt ol loco'* foundry.Thii 3,053-pouuU impeller it iniisllcd In on 64-incli Morrla Verlieol AxIrI Ho pump, ot a generoting plonl of Dow CtiKMiCai.

QUESTION --A monuforturing process Is powered by o 9000 K.

e rttm ic OFFICERS President John F.

INGAERT .VENUE pYORK :.Iay 2Jl, 1951 G-. h d y a r CO ICO'hco Su b je ct: f .r .L .

October 2, 1956 Mr.

*. f w October 28, 1953 Dr.

UNIVERSITY OF CINCINNATI DEPARTMENT OF PREVENTIVE MEDICINE AND INDUSTRIAL HEALTH COLLEGE OF MEDICINE CINCINNATI 19, OHIO Au gu st 25, 1959 M E M OR AN D UM : TO: D r .