Man K. Wong

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North Point, HK

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Patents Grantslast 30 patents

Information Patent Grant
Combined humidifier and fan heater unit
- Patent number 4,752,423
- Issue date Jun 21, 1988
- Wellman Industrial Company, Ltd.
- Man K. Wong
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Combined envelope opener and pencil sharpener unit
- Patent number 4,741,105
- Issue date May 3, 1988
- Wellmann Industrial Co. Ltd.
- Man K. Wong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Load support and handling means
- Patent number 4,735,153
- Issue date Apr 5, 1988
- Wellman Industrial Co. Ltd.
- Man K. Wong
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL