Yiu Wing Wong

Follow

Person

Ma On Shan, HK

People

Patents Grantslast 30 patents

Information Patent Grant
Lever arch binder mechanism with complementary ring tips
- Patent number 7,293,932
- Issue date Nov 13, 2007
- Hong Kong Stationery Manufacturing Co., Ltd.
- Yiu Wing Wong
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Safety ring binder having sliding actuators
- Patent number 6,916,134
- Issue date Jul 12, 2005
- Hong Kong Stationery Manufacturing Co., Ltd.
- Yiu Wing Wong
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

Information Patent Application
Lever arch binder mechanism with complementary ring tips
- Publication number 20050260029
- Publication date Nov 24, 2005
- Hong Kong Stationery Manufacturing Co., Ltd.
- Yiu Wing Wong
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
D-ring binder mechanism with complementary ring tips
- Publication number 20050260030
- Publication date Nov 24, 2005
- Hong Kong Stationery Manufacturing Co., Ltd.
- Yiu Wing Wong
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
Safety ring binder having sliding actuators
- Publication number 20040234328
- Publication date Nov 25, 2004
- Hong Kong Stationery Manufacturing Co., Ltd.
- Yiu Wing Wong
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER