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| Patents for Henry W. Atwater | |||||
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| Number | Date | Patentee | Title | Type | |
| 206,851 | Aug. 13, 1878 | H.W. Atwater | Improvement in Clamps | clamps | |
| CA-18,046 | Nov. 10, 1883 | H.W. Atwater | Wrench | quick adjust wrenches | |