John E. Hey

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Deepwater extended hook travel attachment
- Patent number 4,892,202
- Issue date Jan 9, 1990
- Amca International Corporation
- John E. Hey
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Split block for extended travel
- Patent number 4,721,286
- Issue date Jan 26, 1988
- AMCA International Corporation
- John E. Hey
- B66 - HOISTING LIFTING HAULING