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All Patents in class 403/342 | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 143,473 | Oct. 07, 1873 | M. Stephens | Improvement in machines for punching sheet metal | |
![]() | 287,809 | Nov. 06, 1883 | W. Devereux | Screw-Driver | |
![]() | 717,199 | Dec. 30, 1902 | G.H. Hollm | Tapping Fixture | |
1,126,176 | Jan. 26, 1915 | E.M. De Long, C.E. Baker | Take-Up for Flexible Connections | ||
![]() | 2,449,284 | Sep. 14, 1948 | E.A. Dorman | Machine tool adapter | |
![]() | 2,689,131 | Sep. 14, 1954 | D.E. Priest | Screwdriver with removable blade |