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C. H. Chen
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Taipei, TW
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last 30 patents
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Patent Grant
Swinging type of electric fan
Patent number
5,310,313
Issue date
May 10, 1994
C. H. Chen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Patent Grant
Warm mist humidifier with automatic cleaning device
Patent number
4,869,853
Issue date
Sep 26, 1989
C. H. Chen
F24 - HEATING RANGES VENTILATING