-
Ring assembly for a pen
-
Patent number 6,299,373
-
Issue date Oct 9, 2001
-
Ding Ares Enterprise Co., Ltd.
-
Jason Cheng
-
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
-
Dual-purpose pen
-
Patent number 6,254,295
-
Issue date Jul 3, 2001
-
Ding Ares Enterprise Co., Ltd.
-
Jason Cheng
-
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
-
-
Light pen
-
Patent number 5,961,199
-
Issue date Oct 5, 1999
-
Ding Ares Enterprise Co., Ltd.
-
Ching-Huang Lee
-
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES