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| Patents for Frederick Boardman | |||||
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| Number | Date | Patentee | Title | Type | |
| 233,097 | Oct. 12, 1880 | C. Hopkins | Watchmakers Lathe Chuck | metal lathe chucks | |
| 330,551 | Nov. 17, 1885 | F. Boardman | Pivoting-chuck | watchmaker | |