Derniers inventions, produits et services
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2010
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Invention
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A connecting piece and a method and tool for its manufacture. A connecting piece for a duct (5), ... |
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Invention
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Ventilation duct. A ventilation duct is produced from a fiber material and has a quadrangular, op... |
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2009
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Invention
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Duct means for an air flow or a gas flowand a method for manuacturing , handling and mounting sai... |
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Invention
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Duct means for an air flow or a gas flow and a method for manufacturing, handling and mounting sa... |
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2008
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Invention
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Method and throttling device to control an air flow in a channel or in a channel system.
A metho... |
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