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Jan B. De Wit
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Apeldoorn, NL
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last 30 patents
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Patent Grant
Apparatus for adjusting a central heating installation
Patent number
4,708,287
Issue date
Nov 24, 1987
Nederlandse Centrale Organisatie voor Toegepast-Natuurwe-Tenschappelijk Onder...
Jan B. De Wit
F24 - HEATING RANGES VENTILATING