| Patents for Frederick C. Fraentzel |
Patents 1 -
15
of 16
      |
| Number | Title | Classification(s) |
| 405,385 | Corkscrew | 5/129, 81/3.35 |
| 521,443 | Gas Engine | 123/145R, 123/182.1, 123/188.2, 123/196R, 123/324, 123/78F, 123/87, 123/90.33 |
| 564,356 | Badge Pin or Button | 24/103, 24/711.4, 40/1.5, 63/20 |
| 583,561 | Corkscrew | 81/3.35, D8/38 |
| 587,900 | Corkscrew | 81/3.29 |
| D29,798 | Cap Lift | 81/3.55, D8/40 |
| D30,196 | Design for a cope or drag for molders' flasks | D15/135 |
| 627,967 | Card-index | 220/539, 402/502 |
| 631,772 | Bill-file | 211/51 |
| 667,288 | Extension-slide for drawers of cabinets, &c. | 190/3, 312/334.27, 312/334.47 |
| 679,031 | Power Press | 74/355, 74/586, 74/829 |
| 705,483 | Machine for grooving assembled stock | 144/204, 144/250.22 |
| 767,012 | Combined Carpet Stretcher and Tack Holding Tool | 227/12 |
| 1,043,194 | Grinding and polishing machine | 451/300, 451/303, 451/309 |
| 1,054,738 | Band-saw guide | 83/826, 83/829 |
