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CIRCA 1950s - The National Institute of Health researches polio in 1956.
1950s - The Bureau of Standards in the 1950s.
CIRCA 1950s - Mosquito specimens are checked for radioactivity at the National Institute of Agricultural Sciences in Japan.
1950s: Man looking into microscope. Planes on runway. Men clocking in with punch cards. Man in lab. View of city street. People crossing street. View down city street. People speaking in meeting.
1940s: The Fitzsimons Army Medical Center and the School for Medical Department Enlisted Technicians are shown, in 1947.
CIRCA 1950s educational film about radiation.
CIRCA 1944 - Optical instruments allow scientists to study metal for industrial purposes.

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3909017

Stock Video ID: 3909017

1950s - The National Institute of Health researches polio in 1956.

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