| All Patents in class 192/33R |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
 | 41,403 | Jan. 26, 1864 | N.C. Stiles | Improved Punching-Press |
 | RE3,617 | Aug. 24, 1869 | S. Fowler, administrator, M. Fowler, administrator, G. Fowler, D. Fowler, deceased (estate of) | Improved Machine for Punching Metal |
| | 105,632 | Jul. 26, 1870 | E.W. Bliss | Power Press |
 | 107,363 | Sep. 13, 1870 | A. Hamlin | Improved trip motion for presses, &c. |
 | 110,455 | Dec. 27, 1870 | A. Hamlin | Improved power-press |
 | 116,383 | Jun. 27, 1871 | M.G. Wilder | Power Press |
 | 138,139 | Apr. 22, 1873 | W.B. Duckworth | Improvement in clutches for machinery |
 | 677,644 | Jul. 02, 1901 | J. Doolittle | Punching and shearing machine |
| | 806,916 | Dec. 12, 1905 | C.A. Rich | Clutch-Controlling Mechanism |
 | 2,016,806 | Oct. 08, 1935 | W.L. Schellenbach | Clutch |
