Bruno Haye

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Coulommiers, FR

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Patents Grantslast 30 patents

Information Patent Grant
Seal and process for producing such seal
- Patent number 6,129,485
- Issue date Oct 10, 2000
- Phoenix Aktiengesellschaft
- Werner Grabe
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seal arrangement for tubular tunnel segments
- Patent number 5,888,023
- Issue date Mar 30, 1999
- Phoenix Aktiengesellschaft
- Werner Grabe
- E21 - EARTH DRILLING MINING