Firma Hans Kramer GmbH & Co. KG

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Mineral substance based on a reversibly swellable tri-laminar miner...
- Patent number 4,277,456
- Issue date Jul 7, 1981
- Firma Hans Kramer GmbH & Co. KG
- Ralf Dabrowski
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

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