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| All Patents in class 72/44 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,385,011 | Jul. 19, 1921 | J. Ledwinka | Hammering Machine | power hammers | |
| 3,031,068 | Apr. 24, 1962 | B.F. Ware | Wire Lubricating Device | wire drawing machines | |