Christopher E. Cunningham

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3600 Kongsberg, NO

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Patents Grantslast 30 patents

Information Patent Grant
Seals containing composite non-extrusion springs
- Patent number 5,791,657
- Issue date Aug 11, 1998
- FMC Corporation
- David E. Cain
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hinge-over subsea template production system
- Patent number 5,722,796
- Issue date Mar 3, 1998
- Tore Halvorsen
- E21 - EARTH DRILLING MINING