Hans-Jurgen Weiss

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Frankfurt am Main, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for treating bituminous or oil-containing material using dr...
- Patent number 4,054,492
- Issue date Oct 18, 1977
- Metallgesellschaft Aktiengesellschaft
- Roland Rammler
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES