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| All Patents in class 475/309 | |||||
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| Number | Date | Patentee | Title | Type | |
| 437,973 | Oct. 07, 1890 | E. Butler | Motor | ||
| 626,395 | Jun. 06, 1899 | C.C. Riotte | Reversing Gear | industrial machine speed and direction changing mechanisms | |
| 660,564 | Oct. 30, 1900 | C.W. De Mooy | Reversing-gear and clutch combined | industrial machine gearing | |
| 685,641 | Oct. 29, 1901 | J. Reid | Apparatus for Drilling and Operating Oil Wells | oilfield machinery | |
| 1,716,738 | Jun. 11, 1929 | J. Reid | Clutch Pulley Control | industrial machine pulleys and belt drive mechanisms | |