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| All Patents in class 188/47 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,762 | Oct. 02, 1849 | N. Hodge | Mode of operating brakes for cars | railroad car brakes | |
| 9,109 | Jul. 06, 1852 | L.F. Thompson, A.G. Batchelder | Railroad-car brake | railroad car brakes | |
| 117,841 | Aug. 08, 1871 | G. Westinghouse, Jr. | Improvement in steam-power air-brake devices | railroad car brakes | |
| 482,828 | Sep. 20, 1892 | C.L. Heisler | Locomotive | steam engines | |