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| All Patents in class 218/92 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,163,424 | Dec. 07, 1915 | J.C. Lincoln | Alternating Current Motor Starter | electrical devices | |
| 1,573,904 | Feb. 23, 1926 | C.N. Bergmann | Switch-actuating mechanism | electric switches | |