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| Date: | 1950 |
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| Description: | Holding a dropper over racks of test tubes, a man in a lab coat aims to place drops in the receptacles. |
| Date: | 07 01 1957 |
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| Description: | Betty Gregg, chief technologist for the Red Cross in Madison, checks the blood type of volunteer donor George Gill. |
| Date: | 1953 |
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| Description: | Dora Louise Bower and Ethel Mitchel determining a freezer's capacity in the lab at International Harvester's refrigeration works. |
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