Michael John Preston

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West Hill, CA

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Patents Grantslast 30 patents

Information Patent Grant
In-line venturi
- Patent number 6,250,324
- Issue date Jun 26, 2001
- Wayne Ernest Conrad
- G05 - CONTROLLING REGULATING
Information Patent Grant
In-line venturi
- Patent number 5,934,328
- Issue date Aug 10, 1999
- T I Properties, Inc.
- Wayne Ernest Conrad
- G05 - CONTROLLING REGULATING
Information Patent Grant
In-line venturi
- Patent number 5,676,173
- Issue date Oct 14, 1997
- T I Properties, Inc.
- Wayne Ernest Conrad
- G05 - CONTROLLING REGULATING