18 Utility and 13 Design Patents
#137 in Hong Kong
#6,467 in China
#195,277 in the World
rank by utility patentsForward Citations = 434
Company Filing History:
Hayco Manufacturing Limited


4. 1 out of 1,505

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#137 in Hong Kong
#6,467 in China
#195,277 in the World
rank by utility patentsCompany Filing History:



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