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| Patents for Joseph J. Kraus | |||||
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| Number | Date | Patentee | Title | Type | |
| 117,082 | Jul. 18, 1871 | J.J. Kraus | Improvement in wood-boring tools | tapered reamers | |
| 306,404 | Oct. 14, 1884 | J.J. Kraus | Mortising machine | mortising machines | |