Patrick Estienne

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Vernouillet, FR

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Patents Grantslast 30 patents

Information Patent Grant
Device for attaching an element for rotation in a tube
- Patent number 4,595,047
- Issue date Jun 17, 1986
- Elf France
- Patrick Estienne
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
System for cleaning tube-type exchangers automatically during opera...
- Patent number 4,583,585
- Issue date Apr 22, 1986
- Elf France
- Patrick Estienne
- F28 - HEAT EXCHANGE IN GENERAL