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| All Patents in class 144/68 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 11,430 | Aug. 01, 1854 | W.H. Morrison, M.W. Doran | Mortising-machine | |
 | 468,417 | Feb. 09, 1892 | J.M. Farmer | Hand-crank timber mortising machine | |
| 602,752 | Apr. 19, 1898 | R. Hikki | Mortising bit | ||
 | 625,008 | May 16, 1899 | J.D. Wood | Hand-powered timber mortising machine | |