Johannes W. H. VAN DER Bergh

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Bergen N. H., NL

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Patents Grantslast 30 patents

Information Patent Grant
Method of detecting very small gas leakages through a liquid seal a...
- Patent number 4,028,928
- Issue date Jun 14, 1977
- Neratoom B.V.
- Adrianus VAN Dalen
- C07 - ORGANIC CHEMISTRY