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| Patents for High Speed Hammer Co. Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,460,424 | Jul. 03, 1923 | P.H. Leckinger | Riveting Hammer | rivet making machines | |
| 1,862,431 | Jun. 07, 1932 | W.A. Rockenfield | Helve Operated Hammer | ||