Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
All Patents of Type: slide rules
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
651,142Jun. 05, 1900W.L. KeuffelSlide Ruleslide rules
1,150,771Aug. 17, 1915W.L. KeuffelSlide rule runnerslide rules
1,181,672May 02, 1916W.L. KeuffelSlide rule runnerslide rules
Toggle print mode
Show pictures

Copyright © 2002-2017 - DATAMP