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| All Patents in class 74/89.41 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,168,126 | Aug. 01, 1939 | H.J. Kane | Pipe Vise | pipe and chain vises | |
| 2,384,512 | Sep. 11, 1945 | E.A. Reibig, C.A. Wiken | Machine protective apparatus | woodworking machine safety guards | |