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| Patents for Charles P. Steinmetz | |||||
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| Number | Date | Patentee | Title | Type | |
| 513,992 | Feb. 06, 1894 | R. Eickemeyer | Method of and means for developing dyed stiff hat-bodies | milliner | |
| 596,186 | Dec. 28, 1897 | E.W. Rice, C.P. Steinmetz | Phase Regulator | phase regulators | |
| 609,016 | Aug. 16, 1898 | R. Eickemeyer | Electric elevator | ||
| 620,965 | Mar. 14, 1899 | E.W. Rice, C.P. Steinmetz | Alternating Current Motor | induction motors | |
| 620,966 | Mar. 14, 1899 | E.W. Rice, Jr., C.P. Steinmetz | Induction Motor | induction motors | |