Sam Siu Wai SIU

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Hongkong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Check valve and fluid container comprising the same
- Patent number 9,708,099
- Issue date Jul 18, 2017
- Sam Siu Wai Siu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
CHECK VALVE AND FLUID CONTAINER COMPRISING THE SAME
- Publication number 20140138342
- Publication date May 22, 2014
- Sam Siu Wai SIU
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL