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| All Patents in class 403/156 | |||||
| Number | Date | Patentee | Title | Type | |
| 914,635 | Mar. 09, 1909 | J.B. McDonald, J.N. Bryant | Lumber Rule | lumber rules | |
| 2,566,080 | Aug. 28, 1951 | J.H. Davids | Bushing Assembly | industrial machine bearings | |