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Heinz-Juergen Ungerer
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Viernheim, DE
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last 30 patents
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Patent Grant
Process and device for the production of mineral wool nonwoven fabr...
Patent number
5,093,069
Issue date
Mar 3, 1992
Grunzweig & Hartmann AG
Joachim Mellem
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
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Patent Grant
Facility for generating fibers, in particular mineral fibers, from...
Patent number
4,961,695
Issue date
Oct 9, 1990
Grunzweig & Hartman AG
Clemens Hirschmann
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Patent Grant
Method of melting raw materials
Patent number
4,940,478
Issue date
Jul 10, 1990
Grunzweig & Hartmann AG
Wilfried Naber
C03 - GLASS MINERAL OR SLAG WOOL
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Patent Grant
Apparatus for producing fibres from silicate raw materials such as...
Patent number
4,822,392
Issue date
Apr 18, 1989
Grunsweig & Hartmann and Glasfaser AG
Gaston Fachat
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Apparatus for producing mineral fibres from molten silicate by blas...
Patent number
4,698,086
Issue date
Oct 6, 1987
Grunzweig & Hartmann und Glasfaser AG
Gaston Fachat
C03 - GLASS MINERAL OR SLAG WOOL