Johannes Arnhold

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Heusenstamm, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for making wood charcoal
- Patent number 4,935,099
- Issue date Jun 19, 1990
- Metallgesellschaft Aktiengesellschaft
- Hans-Jurgen Weiss
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...