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| All Patents in class 177/261 | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,119 | Jan. 15, 1856 | T. Ross, F.M. Strong | Platform Scales | scales and balances | |
| 2,258,648 | Oct. 14, 1941 | H.A. Hadley | Understructure for Weighing Scales | scales and balances | |