| All Patents in class 74/471R |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 4 | Aug. 10, 1836 | T. Blanchard | Stock shaving or rounding machine for edges, ends, &c., of ships' tackleblocks | pulley making machines |
| 17,531 | Jun. 09, 1857 | E.J. Worcester | Improved Adjustable Fork-Jaw Wrench | screw adjust wrenches |
| 195,650 | Sep. 25, 1877 | J.A. Robb | Improvement in saw-mill set-works | sawmills |
| 413,721 | Oct. 29, 1889 | W.E. Hill | Log-loader | sawmill log handling |
| 652,358 | Jun. 26, 1900 | F.P. Grode | Attachment for Wood Turning Lathes | wood lathe accessories |
| 718,916 | Jan. 20, 1903 | H.N. Covell | Combined brake and friction operating mechanism | hoists, winches, come-alongs |
| 719,102 | Jan. 27, 1903 | G.H. Follows | Variable Speed Mechanism | metalworking speed changing mechanisms |
| 1,382,529 | Jun. 21, 1921 | S.S. Morton | Lever-Lock | locks |
| 1,527,247 | Feb. 24, 1925 | C. Bouillon | Electric Motor Driven Change Speed Device | |
| 1,900,384 | Mar. 07, 1933 | M. Kahr | Power Plant for Drilling Apparatus | oilfield machinery |
| 2,174,292 | Sep. 26, 1939 | C.A. Rich | Spindle Control Mechanism | |
| 2,278,263 | Mar. 31, 1942 | W.G. Hoelscher | Speed Indicator Means | metal lathe mechanisms |
| 2,540,427 | Feb. 06, 1951 | J.E. Justus, L.J. Charles | Locomotive Control Throttle Handle | diesel locomotives |
| 2,604,794 | Jul. 29, 1952 | F.B. Scott | Belt Tensioning Device for Variable Speed Drives | belt tensioners |
| 2,730,129 | Jan. 10, 1956 | H. Fritschi, A.H. Dall | Tracer Control Mechanism | |
