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| All Patents in class 227/81 | |||||
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| Number | Date | Patentee | Title | Type | |
| 331,412 | Dec. 01, 1885 | A.J. Langelier | Heel-machine | shoe and boot making machines | |
| 659,772 | Oct. 16, 1900 | W.S. Stuckenberg | Box-forming machine | box making machines | |