Da Wei David Chen

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Taiwan, TW

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Patents Grantslast 30 patents

Information Patent Grant
Battery-powered pump for liquid sprayer
- Patent number 7,207,500
- Issue date Apr 24, 2007
- H. D. Hudson Manufacturing Co.
- William A. Hudson
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...