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Filter: Subject of electric apparatus and appliances
| Date: | 1928 |
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| Description: | Professor Hull conducting an experiment at the Psychological laboratory of the University of Wisconsin. |
| Date: | 11 15 1950 |
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| Description: | University of Wisconsin professor J.W. Williams, and Mrs. Winifred Saunders, research associate, work with an electrophoresis instrument in a laboratory in... |
| Date: | 01 15 1959 |
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| Description: | Robert Butler, a public health technologist with the city health department, is examining a used filter. He is atop the second floor of the City-County bui... |
| Date: | |
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| Description: | A man is standing at a control board in a room with other equipment. There is a Toledo Scale on the left behind the control board. A window in the wall beh... |
| Date: | 1960 |
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| Description: | Caption reads: "Control Room of Test Cell For Gas Turbine Engines Construction Equipment Eng. Dept." Behind the controls is a window, and set up in the roo... |
| Date: | 1960 |
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| Description: | Caption reads: "Baird Direct Reading Spectrometer." |
| Date: | 1960 |
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| Description: | Caption reads: "Precision Inspection Equipment for Ball Bearing Balls; Waveometer and Profilometer Pilator." |
| Date: | 1960 |
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| Description: | Caption reads: "Precision Inspection Equipment for Ball Bearing Raceways; Anderometer and Waveometer." |
| Date: | 1960 |
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| Description: | Slightly elevated view of a room filled with machinery, and shelves along the wall. |
| Date: | 1960 |
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| Description: | Caption reads: "Eastman Kodak Shadograph Inspection Equipment." |
| Date: | 1960 |
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| Description: | View of equipment in a room. Caption reads: "Talyrond Roundness Inspection Equipment." |
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