Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
All Patents in class 72/90
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
432,636Jul. 22, 1890S. MooreMachine for Straightening and Sizing Twist Drillsmaking drills and augers
1,254,157Jan. 22, 1918C. PerkinsMachine for Use in the Manufacture of Nailsnail making machines
1,254,176Jan. 22, 1918L.W. ThorsellAutomatic Thread Rolling Machine
2,967,444Jan. 10, 1961R.S. Litterst, E.E. HallbergThread Rolling Machinesthread rolling machines
Toggle print mode
Show pictures

Copyright © 2002-2024 - DATAMP