Wilbert Leonard Porter

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Mancos, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Force balancing capacitance manometer
- Patent number 6,412,349
- Issue date Jul 2, 2002
- Helix Technology Corporation
- Daniel Granville Bills
- G01 - MEASURING TESTING
Information Patent Grant
Force balancing capacitance manometer
- Patent number 5,902,932
- Issue date May 11, 1999
- Granville-Phillips Company
- Daniel Granville Bills
- G01 - MEASURING TESTING