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| All Patents in class 254/12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 201,709 | Mar. 26, 1878 | J. Schofield | Flooring Clamp | floor clamps | |
| 577,975 | Mar. 02, 1897 | L. Bunnell | Floor-clamp | floor clamps | |