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