Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
Patents for Frank B. Richards
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
105,543Jul. 19, 1870J.A. BorthwickImprovement in Machine for Sharpening Sawsannular saws
108,305Oct. 11, 1870C. Van HaagenImproved Planing Mechanismmetal planers
117,365Jul. 25, 1871J.G. BakerImprovement in machines for cutting tobaccotobacco machinery
120,947Nov. 14, 1871A.B. DavisImprovement in Duplex Wrencheswrench jaw components
Toggle print mode
Show pictures

Copyright © 2002-2024 - DATAMP