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CIRCA 1940s - Milk is tested and examined in a laboratory in the 1940s.
The scientific process for making penicillin is shown, and wounded soldiers are healed by use of its treatment in 1944. (1940s)
CIRCA 1950s - Mosquito specimens are checked for radioactivity at the National Institute of Agricultural Sciences in Japan.
1930s: Once roasts have been tasted, blending takes place to put together the perfect blend at Berman Bros. Coffee Company during the 1930s.
Usa - 1950s - local adults attend classes at elmira college to learn about various industries and business, in elmira, new york.
CIRCA 1950s educational film about radiation.
CIRCA 1944 - Female workers in lab coats are handling flasks and doing tests in a laboratory at the Firestone synthetic rubber plant in Akron, Ohio.

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1060951759

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Stock Video ID: 1060951759

CIRCA 1940s - Scientists test the dissolving and emulsion properties of a newly discovered insecticide powder in the 1940s

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