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| Patents for George Heidman | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 460,190 | Sep. 29, 1891 | T.J. Weaver | Saw Set | |
 | 575,239 | Jan. 12, 1897 | W.T. Emmes, G.A. Huewe | Combined paper-box and printing machine | |
 | 582,341 | May 11, 1897 | P.H. Campbell | Wrench | |
 | 655,692 | Aug. 14, 1900 | F.M. Snook, G.F. Dana | Ice Chipping Tool | |
 | 754,620 | Mar. 15, 1904 | J.B. Stanwood | Valve-gearing for steam-engines | |
 | 807,104 | Dec. 12, 1905 | L.W. Anderson | Change-speed gearing | |