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All Patents in class 324/97
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
392,476Nov. 06, 1888E. WestonReflecting-galvanometerelectrical measuring apparatus
392,477Nov. 06, 1888E. WestonGalvanometerelectrical measuring apparatus
392,478Nov. 06, 1888E. WestonGalvanometerelectrical measuring apparatus
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