Frank T. John

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Williamsville, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Microminiature palladium oxide gas detector and method of making same
- Patent number 4,296,399
- Issue date Oct 20, 1981
- A-T-O Inc.
- Frank T. John
- G01 - MEASURING TESTING
Information Patent Grant
Microminiature palladium oxide gas detector and method of making same
- Patent number 4,193,964
- Issue date Mar 18, 1980
- A-T-O Inc.
- Frank T. John
- G01 - MEASURING TESTING