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| Date: | |
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| Description: | Quarter-length portrait of a young Thomas Alva Edison. |
| Date: | 1926 |
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| Description: | Dr. Stephen Babcock with an electric centrifuge butterfat tester. |
| Date: | 02 17 1913 |
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| Description: | Portrait of Thomas Alva Edison in his lab where he worked on his "talking moving machine." |
| Date: | 11 12 1944 |
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| Description: | Emil Andel of the American Bowling Congress demonstrates an automatic foul detector in a bowling alley. |
| Date: | 1919 |
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| Description: | Inventor, B.L. Boboroff, displays his vote recording device to members of the U.S. House of Representatives. |
| 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: | 1909 |
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| Description: | An unidentified man demonstrates his unsuccessful bird wing-like mechanism, which was part of an experiment in aviation. |
| Date: | 1906 |
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| Description: | The monoplane glider built and flown by Carl S. Bates of Clear Lake, Iowa. During the previous year Bates had built a bi-plane glider. |
| 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: | 03 13 1947 |
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| Description: | Sheldon Wengel and Howard La Court demonstrating a photographer's remote flash with a woman model. |
| Date: | 1909 |
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| Description: | An unidentified man demonstrates his unsuccessful bird-like mechanism, which was part of an experiment in aviation. |
| Date: | |
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| Description: | Jack Penewell of Madison, originator of the twelve string Hawaiian guitar (or so his business card says), with another musician tentatively identified as T... |
| Date: | 1950 |
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| Description: | A man sets up a cone-shaped instrument designed to distill fresh water from salt water as he leans out of a small motor boat on the water. |
| 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: | 05 17 1916 |
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| Description: | Men gathered outdoors around a cotton picking machine exhibited at the National Implement and Vehicle Association Meeting. |
| Date: | 1931 |
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| Description: | Reverse side of the International Harvester reaper centennial medallion (or coin) showing the reaper in use, and the words: "Centennial of the Reaper, 1891... |
| Date: | 02 11 1948 |
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| Description: | A Thompson boat with detachable Berg boat wheels on the stern and an Evinrude outboard motor. Taken for the Kulzick Advertizing Agency. A man is standing i... |
| Date: | 05 24 1945 |
|---|---|
| Description: | Bennie Berg standing on a lake shore dock next to a Hoover Boat Line boat. Also shows his invention to aid in launching, the Berg's Inc. Boat Roller. |
| Date: | 04 02 1946 |
|---|---|
| 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... |
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