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All Patents in class 200/8A
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
320,630Jun. 23, 1885L. DaftElectric Switchelectric switches
649,972May 22, 1900T.S. WatsonElectric-motor-controlling devicedental apparatus
1,956,430Apr. 24, 1934W.B. TurnerReversing switch
2,233,113Feb. 25, 1941B.J. Smith, Jr.Radio Receiving Apparatusradios
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