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32 résultats pour : 1930s laboratory

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Man working in a laboratory
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Man working in a laboratory

Man using microscope in laboratory
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Man using microscope in laboratory

Men in laboratory
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Men in laboratory

Female Researcher working in a medical research laboratory in 1937.
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Female Researcher working in a medical research la...

1930s sceintists in a laboratory
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1930s sceintists in a laboratory

Cosmetics being tested by a worker at the Department of Agriculture circa 1937.
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Cosmetics being tested by a worker at the Departme...

1939 - government experiments test the ability to make egg whites different colors.
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1939 - government experiments test the ability to ...

A worker is shown inspecting a roll of film for flaws before it is sent to the laboratory to be printed circa 1937.
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A worker is shown inspecting a roll of film for fl...

Government worker from the Department of Agriculture testing cosmetics circa 1937 .
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Government worker from the Department of Agricultu...

1939 - government experiments test the ability to make egg whites different colors.
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1939 - government experiments test the ability to ...

Testing cosmetics at Department of Agriculture Washington D.C. July 10. Dr. D.C. Grove, of the Dept. of Agriculture is shown giving a shakedown test of different creams circa 1937.
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Testing cosmetics at Department of Agriculture Was...

Man working in a laboratory circa 1936.
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Man working in a laboratory circa 1936.

Man working in Laboratory circa 1935.
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Man working in Laboratory circa 1935.

A rural laboratory on a collective farm in the orsha district of the mari autonomous republic, soviet farmers conducted experiments in the field, and corresponded with experimental agricultural statio...
UMG20B00_164

A rural laboratory on a collective farm in the ors...

Largest Radio Built
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Largest Radio Built

Roentgen X-Ray Machine
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Roentgen X-Ray Machine

Research Chimp At Yale Labs
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Research Chimp At Yale Labs

Primate Discipline
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Primate Discipline

Scientists Test Auto Ignition
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Scientists Test Auto Ignition

Cultivating Germs
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Cultivating Germs

Scientist Works To End All War
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Scientist Works To End All War

Sterilizing Lab Bottles
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Sterilizing Lab Bottles

Scientist With Microscope
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Scientist With Microscope

Scientist With Microscope
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Scientist With Microscope

Billions of Germs In A Closet
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Billions of Germs In A Closet

Searching For Germs
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Searching For Germs

Science Fiction Film Robot
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Science Fiction Film Robot

Vets Give Cow A Physical
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Vets Give Cow A Physical

Dentist Has Cure For Pyorrhea
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Dentist Has Cure For Pyorrhea

TV Demonstration At Bell Labs
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TV Demonstration At Bell Labs

Discus Champion Bud Houser
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Discus Champion Bud Houser

Early Fax Machine
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Early Fax Machine