| Patents for O. F. Mayhew |
Patents 16 -
24
of 24
      |
| Number | Date | Patentee | Title | Type |
| 105,910 | Aug. 02, 1870 | W.M. Chochran | Improvement in sawing-machine | reciprocating sawmills |
| 105,912 | Aug. 02, 1870 | N.T. Coffin | Improvement in machine for securing sheet-metal lining in pump-stocks | |
| 105,913 | Aug. 02, 1870 | N.T. Coffin | Improvement in pump-valve | |
| 110,165 | Dec. 13, 1870 | S.F. Smith | Improvement in sand-papering machine | sanding machines |
| 112,018 | Feb. 21, 1871 | N.T. Coffin | Improvement in pumps | |
| 112,372 | Mar. 07, 1871 | J.H. Pardieck | Improvement in boring machines | drilling and boring |
| 113,144 | Mar. 28, 1871 | N.T. Coffin | Improvement in pumps | |
| 113,796 | Apr. 18, 1871 | A.B. Reeves | Improvement in Cant Hooks | lumberjack |
| 138,166 | Apr. 22, 1873 | J. King | Improvement in grain-drills | crop planters |
