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Patents for Waltham Watch Co.
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,209,359Dec. 19, 1916N. TeslaSpeed-indicator
1,274,816Aug. 06, 1918N. TeslaSpeed-Indicator
1,314,718Sep. 02, 1919N. TeslaShip's Log
1,365,547Jan. 11, 1921N. TeslaFlow-Meter
1,402,025Jan. 03, 1922N. TeslaFrequency Meter
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