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| Patents for Earl J. Hornberger | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,454,643 | May 08, 1923 | E.J. Hornberger | Feeding and Chucking Mechanism for Machine Tools | ||
 | 1,696,037 | Dec. 18, 1928 | E.J. Hornberger | Automatic chuck and roller feed | |
| 1,699,968 | Jan. 22, 1929 | E.J. Hornberger | Friction Clutch | ||
 | 1,708,672 | Apr. 09, 1929 | E.J. Hornberger | Motor drive for lathes | |
 | 1,772,148 | Aug. 05, 1930 | E.J. Hornberger | Cut-off machine | |