| Patents for Frank G. Parker |
Patents 16 -
30
of 41
      |
| Number | Date | Patentee | Title | Type |
| 112,001 | Feb. 21, 1871 | J.P. Woodbury | Improvement in condensing double-end locomotive engines | steam engines |
| 113,043 | Mar. 28, 1871 | R.W. George | Improvement in stave-sawing machines | barrel making machines |
| 121,850 | Dec. 12, 1871 | A.A. Cook | Divider | dividers |
| 126,205 | Apr. 30, 1872 | O.G. Healy | Improvement in pegging-machines | shoe and boot making machines |
| 126,603 | May 07, 1872 | B.D. Whitney | Improvement in machines for sawing staves | cooper |
| 135,903 | Feb. 18, 1873 | R.W. George | Improvement in machines for jointing staves | barrel making machines |
| 136,351 | Feb. 25, 1873 | T. Williams | Improvement in Self-Adjusting Pipe Wrenches | pipe wrenches |
| 138,462 | Apr. 29, 1873 | J.P. Woodbury | Improvement in planing-machines | wood planers |
| 138,548 | May 06, 1873 | T. Williams | Combination Tools | combination tools |
| 148,951 | Mar. 24, 1874 | G.C. Hawkins | Improvement in fan-blowers | blowers |
| RE5,914 | Jun. 16, 1874 | D.P. Foster | Improvement in wrenches | pipe and nut combination wrenches |
| 160,768 | Mar. 16, 1875 | J. Hale | Improvement in scroll-sawing machines | scrollsaws |
| 162,887 | May 04, 1875 | J.E. Bickford, B.F. Sturtevant | Pegging Machines | shoe and boot making machines |
| 183,901 | Oct. 31, 1876 | G.H. Buzzell | Wrench | basin wrenches |
| 317,670 | May 12, 1885 | G.F. Pottle | Self-Gripping Pipe Wrench | pipe wrenches |
