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| Withdrawn Patents | |
| Grant Date | Patent Number |
| 1917-03-27 | 1,220,645 |
| 1917-03-27 | 1,220,699 |
| 1917-03-27 | 1,220,700 |
| 1917-03-27 | 1,220,859 |
| 1917-03-27 | 1,220,897 |
| 1917-03-27 | 1,220,904 |
| 1917-03-27 | 1,221,000 |
| 1917-03-27 | D50,510 |