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Rohrbach Technologie KG
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Balingen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for producing expanded clay and expanded shale
Patent number
4,494,928
Issue date
Jan 22, 1985
Rohrbach Technologie KG
Hans-Joerg Rohrbach
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Production of expanded clay and shale
Patent number
4,342,554
Issue date
Aug 3, 1982
Rohrbach Technologie KG Baustofftechnik GmbH & Co.
Hans-Joerg Rohrbach
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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