Stephen W. Barr

Follow

Person

Marlow, OK, US

People

Patents Grantslast 30 patents

Information Patent Grant
Multi-pressure compensation of variable displacement pump
- Patent number 5,133,644
- Issue date Jul 28, 1992
- Halliburton Company
- Stephen W. Barr
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...