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| Patents for John J. Bartenstein | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,168,844 | Jan. 18, 1916 | J.J. Bartenstein | Wrench | quick adjust wrenches | |
| 1,361,219 | Dec. 07, 1920 | J.J. Bartenstein | Valve Spring Holder | valve spring tools | |