IP Library › Granted Patent US 5,157,947
Granted Patent Utility
US 5,157,947 · App. 07/312,075

Balanced hydraulic valve devices

Inventors: Walter Weirich, Reiner Stich, Michael Dettmers
Patented Case View Patent ↗
Granted: Oct 27, 1992 Filed: Feb 16, 1989
Inventors
Walter Weirich
Reiner Stich
Michael Dettmers
Assignee (at issue)
Gewerkschaft Eisenhutte Westfalia GmbH

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Quick Facts
Patent No.
US 5,157,947
App. No.
07/312,075
Filed
1989-02-16
Granted
1992-10-27
Kind
A