| Patents for Frank G. Parker |
Patents 31 -
42
of 42
      |
| Number | Date | Patentee | Title | Type |
| 317,670 | May 12, 1885 | G.F. Pottle | Self-Gripping Pipe Wrench | pipe wrenches |
| 353,376 | Nov. 30, 1886 | I.L. Rice | Grooving-machine | barrel making machines |
| 410,129 | Aug. 27, 1889 | T.F. Wells | Power Wrench | socket wrenches |
| 429,075 | May 27, 1890 | W. Wells | Improvement in Wrenches For Fish-Plate Bolts | socket wrenches |
| 432,550 | Jul. 22, 1890 | G.T. McLauthlin | Bark Mill | bark processing machines |
| 432,945 | Jul. 22, 1890 | L.D. Junkins | Monkey Wrench Attachment | wrench components |
| 470,778 | Mar. 15, 1892 | L.H. Boyden | Attachment for Screwdrivers | screwdriver mechanisms |
| 531,943 | Jan. 01, 1895 | O. Huff | Saw For Sawing Curves Or Irregular Shapes | handsaws |
| 571,287 | Nov. 10, 1896 | J.F. Ryder | Combination Tool | combination tools |
| D29,520 | Oct. 18, 1898 | C.H. Metz | Wrench Frame | wrench jaw components |
| 850,254 | Apr. 16, 1907 | E.J. Robbins | Pipe Wrench | pipe wrenches |
| 898,657 | Sep. 15, 1908 | P.L. Kimball | Wrench | wrenches |
