Leon Harlan Ivy

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Alvin, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for detecting longitudinal and transverse imperfections i...
- Patent number 4,218,651
- Issue date Aug 19, 1980
- Leon H. Ivy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Galvanometer mechanism mounted on printed circuit board having plug...
- Patent number 4,105,969
- Issue date Aug 8, 1978
- Leon Harlan Ivy
- E21 - EARTH DRILLING MINING