John A. Millington

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Portland, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
Progressing cavity pumps with split extension tubes
- Patent number 5,688,114
- Issue date Nov 18, 1997
- Robbins & Myers, Inc.
- John A. Millington
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...