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WHAT 3M KNEW \ DATES 3 Silicosis is accepted as a known lung disease hazard from working with silica dust. 1920's 1930's WHAT 3M DID 1940's 1950's 1961 1964 1965 1966 1967 M_______________________ 3M advertises: "They protect health and comfort by blocking foreign particles from your respiratory passges."________________ (&>_______________________ 3M ads: "Protects health" "Blocks foreign particles from ___________ respiratory tract."_________________ <2>____________ ____ ________________ ^ 3M advertises in Pit & Quarry that the 8500 "Protects Worker's Lungs." 1968 1969 1970 ( 3M advertises: Protects workers from the hazards of inhaling contaminated air. 3M advertisement: Protects worker's lungs from dust. 1973 1975 1977 1985 1988 1999

File Name Lanza Correspondence Scanned ?

MEMBtHi -- J *>toH Dste Joined Corr cs y Date t.

me like to have him or her around.

1922---- Ramapo -Ajax Corporation was organized vith our company a cor-trollin* 1923---- Acquired National Car Wheel Company which became part of Southern '-.heel Co.

I .i ii problems on their vehicles.

FILE NAME: General Electric (GE) DATE: 1923 Sept 22 DOC#: GE057 DOCUMENT DESCRIPTION: Inspection Report & Comments - Everett Foundry Everett Foundry November 22, IS 23 This i s in many ways an excellent plant and I should have only two c riticism s to make of i t .