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| All Patents in class 177/253 | |||||
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| Number | Date | Patentee | Title | Type | |
| 278,903 | Jun. 05, 1883 | A.H. Emery | Platform-scale | scales and balances | |
| 278,906 | Jun. 05, 1883 | A.H. Emery | Weighing machinery | scales and balances | |
| D138,096 | Jun. 13, 1944 | F.E. Townsend | Weighing Scale | scales and balances | |