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| Patents for E. W. Carpenter Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,409,844 | Mar. 14, 1922 | H. Gartelman | Valve Grinding Tool | valve grinding tools | |
| 2,483,369 | Sep. 27, 1949 | H. Eick, A. Loucony | Sanding machine | sanding machines | |