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All Patents in class 73/538 | |||||
Number | Date | Patentee | Title | Type | |
2,561,560 | Jul. 24, 1951 | S.S. Brown | Centrifugal guided speed responsive device | repulsion start induction run motors | |
2,846,540 | Aug. 05, 1958 | F.R. Neal | Centrifugal electrical circuit interrupting device | centrifugal motor switches |