Frederic L. Hettinger

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Jupiter, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Submersible chamber arrangement
- Patent number 4,149,818
- Issue date Apr 17, 1979
- Perry Oceanographics, Inc.
- Frederic L. Hettinger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Submersible chamber
- Patent number 4,094,159
- Issue date Jun 13, 1978
- Perry Oceanographics, Inc.
- Frederic L. Hettinger
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT