| All Patents in class 408/239A |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 385,475 | Jul. 03, 1888 | H. Naylor | Auger-Handle |
 | 857,151 | Jun. 18, 1907 | U.S. Booth | Drill-bit holder |
| | 4,135,848 | Jan. 23, 1979 | J.P. Bliss, J.W. Turner, T.F. Lis, J.J. Hughes | Toolholder Clamp for Machine Tools |
| | 4,199,286 | Apr. 22, 1980 | E.E. Kirkham | Power Drawbolt With Planetary Drive |
| | 4,303,360 | Dec. 01, 1981 | J.T. Janeczko, D.J. Cayen | Power Drawfinger System for Machine Tool Spindle |
| | 4,655,655 | Apr. 07, 1987 | H. Schürfeld | Tool and Workpiece Holding Arrangement for Material Removing Machining |
 | 4,734,000 | Mar. 29, 1988 | J.O. Lenz | Power drawbar wrench |
| | 4,759,115 | Jul. 26, 1988 | E.J. Kielma | Numerically Controlled Automatic Tool Changing Machining Center Having a Bar-Type Spindle |
 | 5,651,647 | Jul. 29, 1997 | J.R. Bennie | Auxiliary chuck and screwdriver for electric drills |
