Dieter Ullrich

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Device for depolymerizing used and waste plastics
- Patent number 5,917,102
- Issue date Jun 29, 1999
- Veba Oel AG
- Rolf Holighaus
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...