Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
Patents for Pneumatic Drop Hammer Co.
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,722,506Jul. 30, 1929H.G. SahlinDrop hammerdrop hammers
1,924,545Aug. 29, 1933W.H. Fitzgerald, R.P. FitzgeraldDrop hammerdrop hammers
1,990,478Feb. 12, 1935R.P. FitzgeraldDrop hammerdrop hammers
2,206,812Jul. 02, 1940W.H. Fitzgerald, R.P. FitzgeraldDrop hammer die and method of forming samedrop hammers
2,220,037Oct. 29, 1940R.P. FitzgeraldDouble-acting drop hammerdrop hammers
2,263,680Nov. 25, 1941W.H. Fitzgerald, R.P. FitzgeraldDrop hammerdrop hammers
2,449,647Sep. 21, 1948R.P. FitzgeraldDrop hammerdrop hammers
2,612,868Oct. 07, 1952R.P. FitzgeraldPneumatic drop hammerdrop hammers
2,744,315May 08, 1956R.P. FitzgeraldMethod and apparatus for die-forging articles from blanks of normally rigid materialdrop hammers
2,942,503Jun. 28, 1960R.P. FitzgeraldPower operated hammersdrop hammers
Toggle print mode
Show pictures

Copyright © 2002-2024 - DATAMP