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| Withdrawn Patents | |
| Grant Date | Patent Number |
| 1917-12-04 | 1,248,485 |
| 1917-12-04 | 1,248,626 |
| 1917-12-04 | 1,248,679 |
| 1917-12-04 | 1,248,824 |
| 1917-12-04 | 1,248,874 |
| 1917-12-04 | 1,249,128 |
| 1917-12-04 | 1,249,150 |
| 1917-12-04 | 1,249,198 |