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| All Patents in class 177/264 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 442,860 | Dec. 16, 1890 | F.H. Richards, C.H. Cooley | Grain-weigher | ||
| 3,181,635 | May 04, 1965 | J.D. Hale | Portable Weighing Scale | ||