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Filter: Subject of Science
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| Description: | Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famo... |
| Date: | |
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| Description: | Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famo... |
| Date: | |
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| Description: | Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famo... |
| Date: | |
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| Description: | Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famo... |
| Date: | 1856 |
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| Description: | Illustration of northern and southern celestial hemispheres as seen in Black's General Atlas of the World. |
| Date: | 11 05 1954 |
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| Description: | Man operating a ventilator testing cabinet at W.R. Carnes Company. |
| Date: | 03 24 1947 |
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| Description: | Prototype of "Sure Grip" fishing pole holder for carrying fishing poles on the top or sides of a car. Shows device with an advertising card attached that i... |
| Date: | 03 25 1947 |
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| Description: | Metal baby high chair capable of disassembling and folding for easy transport. Close-up view of chair disassembled, with parts packed in a suitcase. View d... |
| Date: | 03 25 1947 |
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| Description: | Metal baby high chair, capable of being disassembled and folded for easy transport. Taken for Halbert M. Wood, WooDick Corporation. |
| Date: | 10 31 1952 |
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| Description: | Research Products, 1015 East Washington Avenue, display featuring Jelene ointment base. |
| Date: | 10 08 1953 |
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| Description: | Display of Research Products Corporation Filter Fry frying pan covers in a grocery cart. |
| Date: | 1896 |
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| Description: | Profile view of a passenger pigeon, a species of pigeon now extinct, with its shadow projected on the wall of the cage behind. Part of a group of pigeons t... |
| Date: | 01 11 1954 |
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| Description: | A man displaying a Research Products Corporation rack for Filter Fry frying pan covers, "Takes the spatter out of kitchen frying." |
| Date: | 04 12 1954 |
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| Description: | Workman riveting two filter frames together horizontally. Taken for Research Products, 1011-1015 East Washington Avenue. |
| Date: | 04 12 1954 |
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| Description: | Workman riveting filter frames together in a L shape, taken for Research Products, 1011-1015 East Washington Avenue. |
| Date: | 1863 |
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| Description: | A sketch of mechanical parts for an invention. |
| Date: | 1863 |
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| Description: | A sketch of a thermometer. Quoting from Muir's autobiography "My Boyhood and Youth" he described the thermometer as "made of an iron rod, about three feet ... |
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