| All Patents in class 74/60 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 10,366 | Jan. 03, 1854 | M.W. Helton | Method of hanging and operating saw-gates | reciprocating sawmills |
| 563,249 | Jul. 07, 1896 | H.C. Baker | Gas Engine | internal combustion engines |
| 580,444 | Apr. 13, 1897 | H.C. Baker | Gas Engine | internal combustion engine valves |
| 1,679,884 | Aug. 07, 1928 | H.T. Thomas | Attachment for drills | handheld power tool accessories |
| 1,785,733 | Dec. 23, 1930 | D.R. Francis | Control Means for Variable Speed Transmision | industrial machine speed changing mechanisms |
| 2,940,324 | Jun. 14, 1960 | P. Belzner | Wobble Drive | |
