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| Patents for Joseph Hubbell | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 66,152 | Jun. 25, 1867 | J. Hubbell | Improvement in head-blocks for sawmills | |
![]() | 95,904 | Oct. 19, 1869 | J. Hubbell | Improvement in head-blocks for sawmills | |
![]() | RE9,078 | Feb. 17, 1880 | J. Hubbell | Head-block for saw-mills | |