Baustofftechnik GmbH & Co.

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Balingen, DE

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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

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