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Patents for J. B. Sweetland | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 61,893 | Feb. 05, 1867 | J.B. Sweetland | Improvement in sawing machines | |
![]() | 65,517 | Jun. 04, 1867 | J.B. Sweetland | Combined drag saw and circular saw |