Improved shuttlecock head and its manufacture method

Application Number: 00111417Application Date: 2000.01.05Publication Number: 1302674Publication Date: 2001.07.11Priority Information: International: A63B67/18Applicant(s) Name: Chen ChengruiAddress: Inventor(s) Name: Chen ChengruiPatent Agency Code: 31211Patent Agent: ding jitieAbstract An improved shuttlecock head features that it is made up from improved cork and composite material, especially, the synthetic or natural rubber is added to the substrate made of composite Read more