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| Patents for H. Dennison | |||||
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| Picture | Number | Date | Patentee | Title | |
 | CA-55,652 | Apr. 17, 1897 | E.M. Croker, J. Warshasky | Wrench | |
 | 612,949 | Oct. 25, 1898 | W.H. Law | Power Hammer | |
 | 618,571 | Jan. 31, 1899 | C.L. Henderson | Wrench | |
 | 996,612 | Jul. 04, 1911 | J.W. Caldwell | Auger-Bit | |