Paul Schmalfeld

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Bad Homburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Recovery of hydrocarbonaceous material from tar sands
- Patent number 4,098,674
- Issue date Jul 4, 1978
- Metallgesellschaft Aktiengesellschaft
- Roland Rammler
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...