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All Patents in class 30/285 | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 322,040 | Jul. 14, 1885 | P.F. Chandler | Gage for drawing-knives | |
![]() | 366,724 | Jul. 19, 1887 | J.H. Hoague | Gage for drawing-knives | |
![]() | 388,148 | Aug. 21, 1888 | H.H. Perkins | Adjustable Chamfer Gage for Drawing Knives |