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All Patents in class 72/145 | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 1,016,700 | Feb. 06, 1912 | A.L. McHugh | Coil-forming machine | |
![]() | 1,372,816 | Mar. 29, 1921 | J.H. Holmgreen | Bending Machine and Method of Bending |