Ralf Dabrowski

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Hilden, DE

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Patents Grantslast 30 patents

Information Patent Grant
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
Information Patent Grant
Process for the encrusting, pilling or granulating of seed material
- Patent number 4,258,074
- Issue date Mar 24, 1981
- Saat- und Erntetechnik GmbH
- Hans Grimm
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING