Date: | 06 23 1933 |
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Description: | U.S. Forest Products engineer, George W. Trayer, in the laboratory with a plywood panel, newly developed to provide strength and durability in construction... |
Date: | 12 20 1943 |
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Description: | Research engineer A.B. Welty stands next to the moisture controlling device at International Harvester Company's farm machinery engineering department. The... |
Date: | 1944 |
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Description: | The original photograph caption reads: "Carl Mott, research engineer in International Harvester Company's farm engineering machinery department in Chicago,... |
Date: | 08 10 1974 |
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Description: | Wisconsin congressmen David Obey (left) and former congressman Alvin O'Konski breaking ground for a United States Forest Services genetics lab. After the c... |
Date: | 1960 |
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Description: | A group of men are standing underneath the X-ray machine which is suspended from the ceiling. Caption reads: "One Million Volt X-Ray Machine at Manufacturi... |
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