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| Date: | 05 19 1937 |
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| Description: | Engineering photograph of an experimental Farmall tractor designated as model "F-22". |
| Date: | 11 21 1935 |
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| Description: | Engineering photograph of an experimental McCormick-Deering six wheel drive tractor with a six cylinder engine. Three-quarter view towards front left. |
| 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: | |
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| Description: | Engineering photograph of an experimental McCormick-Deering industrial winch tractor. 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: | 04 02 1946 |
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| Description: | Mr. Mullarkey (probably Leo R. Mullarkey) standing beside Glider Home Laundry and Dry Cleaning Agitator, Washer and steam garment press with Vel Colgate so... |
| 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: | 10 16 1945 |
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| Description: | Slightly elevated view of five women researchers performing various aspects of food research and related activities in a test kitchen and laboratory at the... |
| Date: | 09 29 1945 |
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| Description: | Toddler sitting at child's training desk, with lid closed. |
| Date: | 09 29 1945 |
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| Description: | Little boy at child's training desk with bench seat. |
| Date: | 09 29 1945 |
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| Description: | Young girl seated at child's training desk with top open showing blackboard. |
| Date: | 06 24 1944 |
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| Description: | Female chemist using C.M. Ambrose Company paint mixer for testing paint, with a man looking on at the Mautz Paint and Varnish Company, 939 East Washington ... |
| Date: | 06 28 1944 |
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| Description: | Female chemist using C.M. Ambrose Company paint mixer for testing paint at the Mautz Paint and Varnish Company, 939 East Washington Avenue. |
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