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| All Patents in class 403/235 | |||||
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| Number | Date | Patentee | Title | Type | |
| 144 | Mar. 11, 1837 | D. Pierce | Improvement in Scythe-Snaths | auxiliary wrenches | |
| 23,358 | Mar. 29, 1859 | J.E. Emerson | Pick-handle | tool handles | |
| RE1,304 | Apr. 29, 1862 | J.E. Emerson | Pickaxe handle | pick axes | |
| 434,896 | Aug. 19, 1890 | W.F. Walker | Pick | pick axes | |
| 786,344 | Apr. 04, 1905 | S.C. Campaigne | Brick Trimming Tool | bricklayer | |
| 2,337,513 | Dec. 21, 1943 | O.H. Watson | Composite Lever for Weighing Scales | scales and balances | |