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| All Patents in class 81/96 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 171,982 | Jan. 11, 1876 | J. Browning | Improvement in Pipe Tongs or Wrenches | |
 | 482,245 | Sep. 06, 1892 | J.E. Wright, J.H. Guiley | Wrench | |
 | 589,312 | Aug. 31, 1897 | L.A. Smith | Wrench | |
 | 594,775 | Nov. 30, 1897 | J. Browning | Pipe Wrench | |
 | 640,005 | Dec. 26, 1899 | C.R. Swett, H.W. Libby | Wrench | |
 | 710,179 | Sep. 30, 1902 | J.T. Burr | Wrench | |
 | 749,544 | Jan. 12, 1904 | W.H. Ermentrout | Wrench | |
 | 870,781 | Nov. 12, 1907 | G. Heckling | CRAFT roller-jaw pipe wrench | |
 | 1,593,588 | Jul. 27, 1926 | F. Moore | Wrench | |