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Ingulf Stuelpnagel
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Wien, AT
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last 30 patents
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Patent Grant
Soundproofing restraining system
Patent number
7,665,574
Issue date
Feb 23, 2010
Roehm GmbH & Co KG
Egbert Schoela
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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last 30 patents
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Patent Application
Soundproofing restraining system
Publication number
20050023079
Publication date
Feb 3, 2005
Egbert Schoela
G10 - MUSICAL INSTRUMENTS ACOUSTICS