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8 résultats pour : laboratory assistant

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Chemical laboratory
UMG26A34_493

Chemical laboratory

Lab Assistant, 1945.
UMG25A28_153

Lab Assistant, 1945.

Ringier Picture Service: laboratory assistant, 1969
UMG25A15_150

Ringier Picture Service: laboratory assistant, 196...

Locomotive lubrication chart
UMG22A20_407

Locomotive lubrication chart

Sergius P. Grace
UMG22A04_091

Sergius P. Grace

Laboratory assistants at the lvov state university receiving radio signals from sputnik 1, ussr, 1957.
UMG20B01_305

Laboratory assistants at the lvov state university...

Guyaule Laboratory 1943
UMG20A64_195

Guyaule Laboratory 1943

Searching For Germs
UMG20A12_394

Searching For Germs