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| All Patents in class 403/92 | |||||
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| Number | Date | Patentee | Title | Type | |
| 139,174 | May 20, 1873 | F.H. Merrill | Improved Pipe Tongs | pipe tongs | |
| 339,633 | Apr. 13, 1886 | E.D. Farnham | Bevel | bevel squares | |
| 4,070,058 | Jan. 24, 1978 | A.A. Muehling | Infinite position seat back recliner | ||