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| Patents for Freeman Higgins | |||||
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| Number | Date | Patentee | Title | Type | |
| 301,891 | Jul. 15, 1884 | R.S. Eastman, F. Higgins | Gear Cutting Machine | gear making machines | |
| 403,509 | May 21, 1889 | F. Higgins | Lathe-chuck | metal lathe chucks | |
| 403,589 | May 21, 1889 | F. Higgins | Lathe Chuck | metal lathe chucks | |
| 447,825 | Mar. 10, 1891 | F. Higgins | Reversing Mechanism for Lathes | metal lathe accessories and attachments | |