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Filter: Year of 1900-1999
| Date: | 11 19 1934 |
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| Description: | Engineering photograph of an experimental McCormick-Deering I-12 tractor with demountable type rear rims. Right side view. |
| Date: | 09 19 1930 |
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| Description: | Engineering photograph of an experimental Increased Power Model 10-20 industrial tractor. Right side view. |
| Date: | 1936 |
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| Description: | Engineering photograph of an experimental McCormick-Deering tractor with wheel covers. The tractor was apparently designed for use by the U.S. military. Th... |
| Date: | 06 30 1930 |
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| Description: | Engineering photograph of an experimental tractor or "shop mule" identified as a "Slonniger tructor." Right side view. |
| Date: | 05 03 1930 |
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| Description: | Engineering photograph of an experimental, redesigned Farmall tractor with 4 1/4" x 5" engine. Left side view. |
| Date: | 02 13 1930 |
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| Description: | Engineering photograph of an experimental 10-20 tractor with electric power take-off. Right side view. |
| Date: | 04 11 1928 |
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| Description: | Engineering photograph of an experimental Farmall tractor with "new Bosch (no battery) lighting system." Right side view. |
| Date: | 04 14 1925 |
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| Description: | Engineering photograph of an experimental McCormick-Deering tractor with fenders apparently designed for use in orchards or groves. Left side view. |
| Date: | 10 16 1945 |
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| Description: | Slightly elevated view of men and women sitting around a table, sampling slices of Oscar Mayer meat products in the Oscar Mayer laboratory. A women in a lo... |
| Date: | 10 16 1945 |
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| Description: | Slightly elevated view of five women workers in an Oscar Mayer Company test kitchen and laboratory. A low wall is separating two women working at desks on ... |
| Date: | 11 10 1937 |
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| Description: | Three male workers testing the "Clean Easy Milker" milking machines at the Ben H. Anderson Mfg. Company, 3220 Atwood Avenue. |
| Date: | 06 23 1936 |
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| Description: | Slightly elevated view of the Wisconsin Department of Agriculture and Markets, Dairy and Food Division chemical laboratory, at 1 West Wilson Street. |
| Date: | 10 12 1935 |
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| Description: | Teacher and two girls looking at rat growth chart. |
| 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: | 09 09 1931 |
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| Description: | Lab worker conducting a test at the Oscar Mayer laboratory. |
| Date: | 09 02 1931 |
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| Description: | Dr. Claude Reading, new director of the state veterinary control laboratory in Agriculture Hall at the University of Wisconsin, at work in his laboratory. |
| Date: | 06 16 1931 |
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| Description: | Albert Lorenz, assistant U.S. meteorologist, is reading a wind velocity instrument in the laboratory at North Hall at the University of Wisconsin-Madison. |
| Date: | 05 05 1931 |
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| Description: | View across fence and field, looking through elm trees towards barns on the University of Wisconsin-Madison campus. |
| Date: | 03 07 1930 |
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| Description: | Group portrait of the University of Wisconsin-Madison Geology club in the Beefeaters room in Memorial Union. |
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