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Patents for Andrew Humbert | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 111,829 | Feb. 14, 1871 | J.E. Emerson | Improvement in gauges for saw-filers | |
![]() | 112,569 | Mar. 14, 1871 | J.E. Emerson | Improvement in saws |