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| All Patents in class 227/150 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,900,683 | Mar. 07, 1933 | H.G. Allen | Hand Stitching Tool | ||
| 2,188,117 | Jan. 23, 1940 | E.V. Patterson, C.A. Macy | Nailing Machine | nailing machines | |