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| Patents for John J. Laass | |||||
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| Number | Date | Patentee | Title | Type | |
| 522,795 | Jul. 10, 1894 | J. Lytle | Pipe Wrench | chain and strap wrenches | |
| 527,227 | Oct. 09, 1894 | J.H. Westcott | Drill-chuck | drill press chucks | |
| D25,135 | Feb. 04, 1896 | H.A. Moyer | Design for a sleigh | sleighs | |