Sibrand A. Ubels

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Waterloo, BE

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Patents Grantslast 30 patents

Information Patent Grant
Method for reducing pressure drop in the transportation of drag red...
- Patent number 4,881,566
- Issue date Nov 21, 1989
- Conoco Inc.
- Sibrand A. Ubels
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS