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Del-Air Systems Ltd.
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Humboldt, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Inlet Device
Patent number
4,794,852
Issue date
Jan 3, 1989
Del-Air Systems Ltd.
Dirk V. Ee
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Heat exchanger housing
Patent number
D297044
Issue date
Aug 2, 1988
Del-Air Systems Ltd.
Dirk Van Ee
D23 - Environmental heating and cooling
Information
Patent Grant
Air to air heat exchanger
Patent number
4,646,817
Issue date
Mar 3, 1987
Del-Air Systems Ltd.
Dirk Van Ee
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Air-to-air heat exchanger
Patent number
D282870
Issue date
Mar 4, 1986
Del-Air Systems Ltd.
L. Benning
D23 - Environmental heating and cooling
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73380904 - DEL-AIR EXCHANGER
Serial number
73380904
Registration number
1268575
Filing date
Aug 20, 1982
Del-Air Systems Ltd.
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes