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| Date: | 07 30 1929 |
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| Description: | A man reads a Toledo scale at the University of Wisconsin engineering building. |
| Date: | 07 30 1929 |
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| Description: | A man reading a scale at the University of Wisconsin engineering building. |
| Date: | 09 12 1928 |
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| Description: | Miles J. Martin laboratory equipment and Underwood typewriter used for thesis at the Physics building (Sterling Hall?) located on the University of Wiscons... |
| Date: | 01 09 1927 |
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| Description: | Paint test panels near Middleton, with shadow of photographer and camera. |
| Date: | 01 09 1928 |
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| Description: | Difference in paint on fences on a state highway. |
| Date: | 09 1926 |
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| Description: | Column failure testing at the University of Wisconsin Engineering Laboratory. |
| Date: | 1926 |
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| Description: | Special Kjeldahl apparatus in Dr. Edwin B. Fred's laboratory. |
| Date: | 1926 |
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| Description: | Comparative infection of "yellows" in a field of alfalfa and sweet clover. |
| Date: | 1926 |
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| Description: | Concrete chimney experiment at the University of Wisconsin. |
| Date: | 05 26 1926 |
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| Description: | Machine for testing wind leakage through windows and doors, set up at Randall shops, and manufactured by Monarch Metal Products. |
| Date: | 09 11 1939 |
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| Description: | Engineering photograph of experimental McCormick-Deering Farmall B tractor with 32 inch rear wheels. Three-quarter view towards right front. |
| Date: | 03 16 1927 |
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| Description: | Engineering photograph of men field testing an experimental cotton picker pulled by a Farmall tractor. |
| Date: | 06 12 1917 |
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| Description: | Engineering photograph of a man field testing a limited production motor cultivator. Original caption reads: "... the 1916 motor cultivator with the additi... |
| Date: | 02 16 1923 |
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| Description: | Engineering photograph of an experimental Farmall tractor. A white backdrop is set up along the brick wall in the background. |
| Date: | 02 16 1923 |
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| Description: | Engineering photograph of an experimental Farmall tractor. Right side view. |
| Date: | 05 15 1930 |
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| Description: | Engineering photograph of an experimental Farmall tractor with "increased power." Right side view. |
| Date: | 10 11 1939 |
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| Description: | Engineering three-quarter view towards left front of an experimental Farmall M tractor. |
| Date: | |
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| Description: | Engineering photograph of an experimental International 12-22 tractor. |
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