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Patents for H. A. Rahn
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,202,019Oct. 24, 1916J. BathMicrometer Calipersmicrometers
1,232,801Jul. 10, 1917H.J. HjorthUniversal Lathe Attachmentmetal lathe accessories and attachments
1,274,452Aug. 06, 1918J.J. Richards, Jr.Grease Gun Fillergrease guns
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