| All Patents in class 74/89.22 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 7,145X | Jun. 27, 1832 | I. Van Gorder | Churn | churns |
| 72,632 | Dec. 24, 1867 | D.F. Hartford | Improvement in Stringing Bow-Drill Stocks | hand drills |
| 324,509 | Aug. 18, 1885 | E. Winans | Power Transmitting Machinery | human powered apparatus |
| 878,641 | Feb. 11, 1908 | V. Landholm | Loader | attachments |
| 2,941,249 | Jun. 21, 1960 | H.H. Rogers | Multiple Opening Press | metalworking presses |
| 3,150,527 | Sep. 29, 1964 | G.L. Trandel | Variable speed device and adjusting means therefor | industrial machine pulleys and belt drive mechanisms |
| 3,699,473 | Oct. 17, 1972 | I.L. Paul | Dial indicators | |
