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| Patents for Albert Washington Amsden | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,439,282 | Dec. 19, 1922 | A.W. Amsden | Gauge for Grinding Drill Bits | special purpose gauges | |
| 1,538,501 | May 19, 1925 | A.W. Amsden | Adjustable handle hack saw frame | hacksaws | |