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| Patents for Charles Karp | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 471,078 | Mar. 15, 1892 | J. Landwehr | Pipe Wrench | |
 | 482,855 | Sep. 20, 1892 | A. Hormel, A. Tilton | Machine for decorating wood | |
 | 511,049 | Dec. 19, 1893 | G.S. Junginger, A. Hormel | Electric-arc lamp | |