David W. Francis

Follow

Person

Youngstown, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Neutral stop device
- Patent number 4,898,427
- Issue date Feb 6, 1990
- Commercial Intertech Coporation
- David W. Francis
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic seal having U-shaped gasket and a plurality of plasticall...
- Patent number 4,636,155
- Issue date Jan 13, 1987
- Commercial Shearing, Inc.
- David W. Francis
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Methods and apparatus for gear pump lubrication
- Patent number 4,470,776
- Issue date Sep 11, 1984
- Commercial Shearing, Inc.
- Theodore P. Kostek
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...