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Patents for Curtis & Curtis Co.
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
253,996Feb. 21, 1882W.D. ForbesScrew-cutting dietaps and dies
270,407Jan. 09, 1883W.D. ForbesScrew-threading machinepipe threading machines
270,408Jan. 09, 1883W.D. ForbesScrew-threading machinepipe threading machines
270,409Jan. 09, 1883W.D. ForbesScrew-threading machinepipe threading machines
CA-16,422Mar. 01, 1883W.D. ForbesDie-stocktap wrenches and die stocks
356,871Feb. 01, 1887W.D. ForbesPipe and rod visepipe and chain vises
363,626May 24, 1887W.D. ForbesDie-stocktap wrenches and die stocks
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