Chun On To

Follow

Person

Kowloon, HK

People

Patents Grantslast 30 patents

Information Patent Grant
Ring binder with compact disk holder
- Patent number 6,382,863
- Issue date May 7, 2002
- Laco Stationery Manufacturing Company, Limited
- Chun On To
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Sheet retaining device and method of packaging sheet retaining devices
- Patent number 6,146,042
- Issue date Nov 14, 2000
- World Wide Stationery Mfg. Co., Ltd.
- Chun On William To
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Ring binder with divided housings
- Patent number 6,109,813
- Issue date Aug 29, 2000
- World Wide Stationery Mfg. Co., Ltd.
- Chun On To
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Assembling and disassembling device for ring binders
- Patent number 5,924,811
- Issue date Jul 20, 1999
- World Wide Stationery Mfg. Co., Ltd.
- Chun Yuen To
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

Information Patent Application
RING BINDER WITH COMPACT DISK HOLDER
- Publication number 20020050709
- Publication date May 2, 2002
- Chun On To
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER