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| All Patents in class 200/558 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,016,071 | Jan. 30, 1912 | J.T. Janette | Electric switch | electric switches | |
| 2,623,970 | Dec. 30, 1952 | E.P. Bullard | Electrical Switch | ||