IP Library Granted Patent US 4,983,305
Granted Patent Utility
US 4,983,305 · App. 07/437,449

Power recovery pump turbine

Inventors: Robert A. Oklejas, Eli Oklejas, Jr.
Patented Case View Patent ↗
Granted: Jan 8, 1991 Filed: Nov 15, 1989
Inventors
Robert A. Oklejas
Eli Oklejas, Jr.

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Quick Facts
Patent No.
US 4,983,305
App. No.
07/437,449
Filed
1989-11-15
Granted
1991-01-08
Kind
A