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Heinrich Nickel GmbH
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Betzdorf, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Double floor for removing air from rooms
Patent number
5,144,781
Issue date
Sep 8, 1992
Heinrich Nickel GmbH
Klaus Fitzner
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Laminarizer
Patent number
4,898,087
Issue date
Feb 6, 1990
Heinrich Nickel GmbH
Klaus Fitzner
F24 - HEATING RANGES VENTILATING