Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
Patents for John Helwig
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
444,635Jan. 13, 1891J. HelwigBolt and Rivet Cutterbolt cutters
1,502,192Jul. 22, 1924J. HelwigWrench and Process of Manufacturing the Samescrew adjust wrenches
Toggle print mode
Show pictures

Copyright © 2002-2019 - DATAMP