| All Patents in class 476/40 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 197,472 | Nov. 27, 1877 | C.W. Hunt | Improvement in counter-shafts for driving machinery | industrial machine mechanisms |
| 529,713 | Nov. 27, 1894 | H.H. Cummings | Speed Changing and Reversing Mechanism | metalworking variable speed mechanisms |
| 529,714 | Nov. 27, 1894 | H.H. Cummings | Speed Changing and Reversing Mechanism | metalworking variable speed mechanisms |
| 529,715 | Nov. 27, 1894 | H.H. Cummings | Speed Changing, Reversing and Stopping Mechanism | |
| 620,439 | Feb. 28, 1899 | L.M. Gautier | Mechanical Movement | metalworking variable speed mechanisms |
| 623,140 | Apr. 18, 1899 | H.H. Cummings | Drilling-machine | drill presses |
| 7,033,237 | Jun. 24, 1902 | E.P. Cowles | Variable Friction Gearing | metalworking variable speed mechanisms |
| 727,136 | May 06, 1903 | T.W. Heermans | Elevator Hoisting Mechanism | elevators and lifts |
