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| All Patents in class 188/82.7 | |||||
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| Number | Date | Patentee | Title | Type | |
| 983,668 | Feb. 07, 1911 | W.A. Barker | Friction-brake mechanism | ||
| 3,902,576 | Sep. 02, 1975 | R.M. Biessener, R.W. Pitan | Add-on unidirectional brake | dollies, carts and hand trucks | |