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Patents for Carl A. Rall | |||||
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Picture | Number | Date | Patentee | Title | |
1,967,325 | Jul. 24, 1934 | C.A. Rall | Motor | ||
2,055,049 | Sep. 22, 1936 | C.A. Rall | Electric motor | ||
2,174,758 | Oct. 03, 1939 | C.A. Rall | Multispeed motor |