| All Patents in class 408 |
Patents 2326 -
2340
of 3520
      |
| Number | Date | Patentee | Title | Type |
| 1,536,659 | May 05, 1925 | R.L. Carter | Adjustable cutter head | cutterheads |
| 1,538,317 | May 19, 1925 | F.T. Flinchbaugh | Portable Reboring Machine for Engine Cylinders | portable metal drilling machines |
| 1,538,670 | May 19, 1925 | J.W. Stanley | Tool Holder | metalworking machine tool holders |
| 1,543,236 | Jun. 23, 1925 | W.T. Sears | Rotating table for radial drills | radial drill presses |
| 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 |
