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Patents for Franklin Hardinge
Patents 1 - 10 of 56
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PictureNumberDatePatenteeTitle
438,415Oct. 14, 1890F. HardingeWatch-maker's polisher
438,416Oct. 14, 1890F. HardingeWatch maker's roller extractor
703,725Jul. 01, 1902F. HardingeDiopter gage
766,245Aug. 02, 1904F. HardingeAutomatic gear cutting machine
894,634Jul. 28, 1908F. HardingeLathe
894,635Jul. 28, 1908F. HardingeLathe
895,456Aug. 11, 1908F. HardingeAttachment for phonographic machines
900,531Oct. 06, 1908F. HardingeLens measuring instrument
908,664Jan. 05, 1909F. HardingeLathe structure
912,312Feb. 16, 1909F. HardingeReceptacle for keys for watchmen's clock
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