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Patents for Francis H. Richards
Patents 46 - 60 of 83
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NumberDatePatenteeTitleType
452,053May 12, 1891F.H. RichardsMultiple drilling-machinemultiple spindle drill presses
452,880May 26, 1891J.A. TrautMethod of making suspender buckles
460,692Oct. 06, 1891F.H. RichardsDrilling-machinedrill presses
D21,400Mar. 15, 1892J.A. TrautDesign for a clasp
470,777Mar. 15, 1892C.E. BillingsMultiblade Screwdriverscrewdriver mechanisms
471,259Mar. 22, 1892J.A. TrautSuspender buckle case
D21,517May 03, 1892J.A. TrautBuckle
478,772Jul. 12, 1892J.A. TrautTrousers Guard
480,963Aug. 16, 1892F.H. RichardsTurret Mechanism for Lathesmetal lathe accessories and attachments
480,964Aug. 16, 1892F.H. RichardsTurret Mechanismmetal lathe accessories and attachments
482,212Sep. 06, 1892W.W. TuckerGrinding Fixturegrinding fixtures
484,673Oct. 18, 1892F.H. RichardsClock Lathewatchmakers lathes
487,775Dec. 13, 1892F.H. RichardsDuplex feed mechanismmilling machines
CA-41,621Jan. 16, 1893N. CluteMethode D'Alimentation des Chaudieresfeedwater apparatus
493,409Mar. 14, 1893F.H. RichardsBelt Shifting Apparatusindustrial machine pulleys and belt drive mechanisms
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