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| Patents for L. H. Grote | |||||
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| Number | Date | Patentee | Title | Type | |
| 821,149 | May 22, 1906 | G.J. Alphandery | Device For Facilitating the Removal of Valves From Valve Boxes of Internal Combustion Engines | valve spring tools | |
| 868,436 | Oct. 15, 1907 | L. Hermand | Wrench | brace wrenches | |