| Patents for Frederick C. Fraentzel |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 405,385 | Jun. 18, 1889 | W.A. Williamson | Corkscrew | pocket and protected cork extractors |
| 521,443 | Jun. 12, 1894 | S.D. Shepperd | Gas Engine | internal combustion engines |
| 564,356 | Jul. 21, 1896 | G.B. Adams | Badge Pin or Button | T corkscrews and other straight corkscrews |
| 583,561 | Jun. 01, 1897 | W.A. Williamson | Corkscrew | figural cork extractors |
| 587,900 | Aug. 10, 1897 | W.A. Williamson | Corkscrew | self and partial cork pullers |
| D29,798 | Dec. 13, 1898 | W.A. Williamson | Cap Lift | self and partial cork pullers |
| D30,196 | Feb. 14, 1899 | O. Barnett, Jr. | Design for a cope or drag for molders' flasks | foundry casting apparatus |
| 627,967 | Jul. 04, 1899 | E.J. Bein | Card-index | |
| 631,772 | Aug. 29, 1899 | E.J. Bein | Bill-file | |
| 667,288 | Feb. 05, 1901 | E.J. Bein | Extension-slide for drawers of cabinets, &c. | |
| 679,031 | Jul. 23, 1901 | A.A. Berghof, F.W. Theberath, G.A. Ohl, Jr., G.A. Ohl, Sr. | Power Press | punch presses |
| 705,483 | Jul. 22, 1902 | M.B. Tidey | Machine for grooving assembled stock | dado machines |
| 767,012 | Aug. 08, 1904 | A. Rebetey | Combined Carpet Stretcher and Tack Holding Tool | carpet stretchers |
| 1,043,194 | Nov. 05, 1912 | J.C. Blevney | Grinding and polishing machine | sanding machines |
| 1,054,738 | Mar. 04, 1913 | C.E. Wright | Band-saw guide | bandsaw guides |
