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| All Patents in class 310/101 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,284,304 | Nov. 12, 1918 | V.A. Fynn | Electromagnetic transmission apparatus | electrical devices | |
| 1,298,966 | Apr. 01, 1919 | J.S. Knowlson | Electrically-operated tool | impact riveters | |