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| All Patents in class 303/12 | |||||
| Number | Date | Patentee | Title | Type | |
| 28,670 | Jun. 12, 1860 | N. Hodge | Improvement in railroad-brakes | railroad car brakes | |
| RE8,971 | Nov. 18, 1879 | N. Hodge | Improvement in vacuum railroad-brakes | ||