| Patents for Franklin Hardinge |
Patents 1 -
15
of 56
      |
| Number | Date | Patentee | Title | Type |
| 438,415 | Oct. 14, 1890 | F. Hardinge | Watch-maker's polisher | watchmaker |
| 438,416 | Oct. 14, 1890 | F. Hardinge | Watch maker's roller extractor | watchmaker |
| 703,725 | Jul. 01, 1902 | F. Hardinge | Diopter gage | optician |
| 766,245 | Aug. 02, 1904 | F. Hardinge | Automatic gear cutting machine | gear making machines |
| 894,634 | Jul. 28, 1908 | F. Hardinge | Lathe | metal lathes |
| 894,635 | Jul. 28, 1908 | F. Hardinge | Lathe | metal lathes |
| 895,456 | Aug. 11, 1908 | F. Hardinge | Attachment for phonographic machines | |
| 900,531 | Oct. 06, 1908 | F. Hardinge | Lens measuring instrument | |
| 908,664 | Jan. 05, 1909 | F. Hardinge | Lathe structure | |
| 912,312 | Feb. 16, 1909 | F. Hardinge | Receptacle for keys for watchmen's clock | |
| 928,045 | Jul. 13, 1909 | F. Hardinge | Controlling mechanism for lathe structures or the like | metal lathes |
| 943,825 | Dec. 21, 1909 | F. Hardinge | Receptacle | |
| 986,630 | Mar. 14, 1911 | F. Hardinge | Watchman's clock | |
| 1,016,688 | Feb. 06, 1912 | F. Hardinge | Watchman's clock | |
| 1,046,182 | Dec. 03, 1912 | F. Hardinge | Signaling system | |
