| All Patents in class 72/332 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 13,780 | Nov. 13, 1855 | R. Cook | Dies for Making Cook's Bits | making drills and augers |
| 68,012 | Aug. 20, 1867 | J. Swan | Manufacture of Single Twist Augers | making drills and augers |
| 355,692 | Jan. 11, 1887 | C. Harris | Saw set | saw sets |
| 955,117 | Apr. 12, 1910 | F.I. Ellis | Pipe Crushing and Shearing Machine | metal shearing machines |
| 1,121,675 | Dec. 22, 1914 | A.O. Slentz | Power slip-joint-forming machine | sheet metal flanging machines |
| 1,561,803 | Nov. 17, 1925 | H.C. Smith | Strip-Straightening Attachment For Rotary Shears | metal shearing machines |
| 1,838,470 | Dec. 29, 1931 | F.J. Vlchek | Manufacture of Swaged and Tempered Articles | metalworking machines |
| 2,337,881 | Dec. 28, 1943 | F.W. Gaines, III | Wire Drawing Machine and Method | wire drawing machines |
