Date: | 10 30 1931 |
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Description: | A food scientist looking through a microscope at Oscar Mayer. |
Date: | 02 18 1949 |
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Description: | U.S. Army Major Herbert Crecelius of the army chemical corps studying agricultural bacteriology at the University of Wisconsin-Madison. He is in a lab coat... |
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. |
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