IP Library › Granted Patent US 4,877,257
Granted Patent Utility
US 4,877,257 · App. 07/295,002

Piston ring

Inventor: Russell D. Ide
Patented Case View Patent ↗
Granted: Oct 31, 1989 Filed: Jan 6, 1989
Inventor
Russell D. Ide

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Quick Facts
Patent No.
US 4,877,257
App. No.
07/295,002
Filed
1989-01-06
Granted
1989-10-31
Kind
A