All Patents in class 408 |
Patents 2326 -
2340
of 3506
|
Number | Date | Patentee | Title | Type |
1,545,030 | Jul. 07, 1925 | C.A. Best | Boring tool | twist drill bits |
1,545,749 | Jul. 14, 1925 | R.E. Flanders | Method of Making Chasers | thread chasers |
1,546,138 | Jul. 14, 1925 | D. Lambert | Expanding Cutter | boring heads |
1,549,178 | Aug. 11, 1925 | B.S. Bishop | Tapping machine | tapping machines |
1,550,609 | Aug. 18, 1925 | W.R. Fox, H.D. Corwin | Metal-working machine | |
1,557,241 | Oct. 13, 1925 | J.C. Carlton | Friction Clutch | radial drill presses |
1,559,190 | Oct. 27, 1925 | C.F. Sherman | Drill press | drill presses |
1,559,944 | Nov. 03, 1925 | G.W. Emrick | Clutch construction for tapping attachments and the like | tapping heads and chucks |
1,560,462 | Nov. 03, 1925 | R.A. Boehm | Self Opening and Closing Threading Die Holder | tap and die holders |
1,560,487 | Nov. 03, 1925 | A.A. Shafer | Automatic Screw Threading Machine | metal threading machines |
1,562,862 | Nov. 24, 1925 | C. Bodmer | Ratchet screw driver | ratcheting screwdrivers |
1,563,108 | Nov. 24, 1925 | A.J. Prance | Thread-cutting die | tapping heads and chucks |
1,564,460 | Dec. 08, 1925 | F.L. Young | Drill | handheld power drills |
1,571,620 | Feb. 02, 1926 | F.M. Bettes | Drill holder | handheld power drills |
1,571,893 | Feb. 02, 1926 | R.L. Rickwood, D.C. Klausmeyer | Radial Drill Column Clamp | radial drill presses |