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Patents for Orville T. Chamberlain | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 256,448 | Apr. 11, 1882 | A.J. Signor | Die Stock | |
![]() | 389,400 | Sep. 11, 1888 | E.C. Mead | Wrench | |
![]() | 445,185 | Jan. 27, 1891 | E.C. Mead | Wrench |