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| Patents for John F. Milligan | |||||
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| Number | Date | Patentee | Title | Type | |
| 197,650 | Nov. 27, 1877 | J.F. Milligan | Improvement in means for cooling circular saws | circular saw accessories | |
| 199,851 | Jan. 29, 1878 | J.F. Milligan | Improvement in circular saws | sawblades | |
| 199,852 | Jan. 29, 1878 | J.F. Milligan | Improvement in circular saws | sawblades | |
| 455,484 | Jul. 07, 1891 | J.F. Milligan, R.L. Fosburgh | Reversible Ratchet | ratchet wrenches | |