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| All Patents in class 42/23 | |||||
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| Number | Date | Patentee | Title | Type | |
| 33,631 | Nov. 05, 1861 | C.H. Ballard | Improvement in breech-loading firearms | rifles | |
| 220,271 | Oct. 07, 1879 | J.M. Browning | Improvement in breech-loading firearms | rifles | |