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| Patents for W. J. Cambridge | |||||
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| Number | Date | Patentee | Title | Type | |
| 230,129 | Jul. 20, 1880 | W. Hill | Ticket Punch | pliers | |
| 285,867 | Oct. 02, 1883 | R. Woodman | Ticket Punch | ticket | |
| 289,063 | Nov. 27, 1883 | J. Brown | Head For Siphon-Bottles | auxiliary wrenches | |