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| All Patents in class 177/145 | |||||
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| Number | Date | Patentee | Title | Type | |
| 7,425X | Feb. 13, 1833 | B. Morison | Balance platform | ||
| RX-45 | Dec. 31, 1833 | B. Morison | Balance Scale | ||
| 7,935X | Dec. 31, 1833 | B. Morison | Balance platform (reissued) | ||
| 2,279,041 | Apr. 07, 1942 | H.A. Hadley | Conveyor Weighing Scale | scales and balances | |