| All Patents in class 254/93R | 
| Patents 1 - 
					14
					of 14 
       | 
| Number | Date | Patentee | Title | Type | 
| 571,547 | Nov. 17, 1896 | J. Weeks | Hydraulic jack | hydraulic jacks | 
| 630,105 | Aug. 01, 1899 | H.B. Phillips | Log Loading Apparatus | lumberjack | 
| 649,357 | May 08, 1900 | W.H. Ridgway | Hoisting apparatus | hoists, winches, come-alongs | 
| 935,235 | Sep. 28, 1909 | C.E. Sargent | Device for Barring Over Engines | attachments | 
| 1,436,623 | Nov. 21, 1922 | P.F. Lueth | Independent direct-acting skid lift | woodworking material handling machines | 
| 1,773,712 | Aug. 19, 1930 | J.B. Wiard | Apparatus for controlling electric motors | electric motors | 
| 1,948,073 | Feb. 20, 1934 | R.E. Manley | Hydraulic jack | vehicle mechanic | 
| 2,402,579 | Jun. 25, 1946 | W.A. Ross | Load lifter |  | 
| 2,475,040 | Jul. 05, 1949 | S. Mandl | Ram |  | 
| 2,561,577 | Jul. 24, 1951 | R.G. Knudsen | Pneumatic Impact Pullers and the Like |  | 
| 2,752,801 | Jul. 03, 1956 | E.T. Olson | Fluid actuated clamp | work holding | 
| 2,776,470 | Jan. 08, 1957 | R.G. Knudsen | Cylinder Sleeve Pulling Device and the Like |  | 
| 3,031,743 | May 01, 1962 | A. Duerksen | Power Rim Tool |  | 
| 3,268,208 | Aug. 23, 1966 | H.O. Feilbach, D.E. Stuart | Air jack with lubricating means | jacks |