| All Patents in class 279/141 | 
| Patents 1 - 
					14
					of 14 
       | 
| Number | Date | Patentee | Title | Type | 
| 409,483 | Aug. 20, 1889 | W.J. Muncaster | Pulley Chuck | metal lathe chucks | 
| 1,764,026 | Jun. 17, 1930 | J.E. Lovely | Fixture for Holding Ring Gears | jigs and fixtures | 
| 1,815,562 | Jul. 21, 1931 | L.E. Godfriaux | Hydraulic Chuck | metal lathe chucks | 
| 1,947,957 | Feb. 20, 1934 | J.R. Tillman | Workholder |  | 
| 2,050,828 | Aug. 11, 1936 | T.B. Buell | Chuck |  | 
| 2,397,025 | Mar. 19, 1946 | J. MacBlane | Automatic Chuck | drill press chucks | 
| 2,413,068 | Dec. 24, 1946 | R.S. Pyne | Diaphragm chuck | cylindrical grinders | 
| 2,443,895 | Jun. 22, 1948 | M.H. Arms, B.C. Day | Bevel gear holding fixture | grinders | 
| 2,754,641 | Jul. 17, 1956 | E.C. Bidwell | Work holding and clamping mechanism for centerless grinding machines | grinders | 
| 2,767,564 | Oct. 23, 1956 | F.L. Green | Tool Holder | drilling and boring tool holders | 
| 2,981,037 | Apr. 25, 1961 | C.J. Terp | Workholder and method for internal grinding | grinders | 
| 3,054,621 | Sep. 18, 1962 | R.E. Buck | Resilient auxiliary chuck jaw | metal lathe chucks | 
| 3,369,820 | Feb. 20, 1968 | R.E. Reed, R.A. Lehmkuhl | Power Chuck | milling machine accessories | 
| 3,386,317 | Jun. 04, 1968 | R.C. Greathouse, C.N. Flick | Bore Machining Mechanism | horizontal boring mills |