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Herbert Prignitz
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D-2000 Hamburg 74, DE
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last 30 patents
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Patent Grant
Method and apparatus for discharging a foamed material mixture, and...
Patent number
5,207,047
Issue date
May 4, 1993
Herbert Prignitz
E04 - BUILDING
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Patent Grant
Double belt moulding machine
Patent number
4,981,427
Issue date
Jan 1, 1991
Herbert Prignitz
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Thermal insulation material as insulating and sealing layer for roo...
Patent number
4,977,711
Issue date
Dec 18, 1990
Herbert Prignitz
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL