Bong-Seok Yoon

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Kyonggi-Do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Dartboard with magnetic rubber sheet
- Patent number 6,517,075
- Issue date Feb 11, 2003
- Magnet 4U Co., Ltd.
- Bong-Seok Yoon
- F41 - WEAPONS

Patents Applicationslast 30 patents

Information Patent Application
DARTBOARD WITH MAGNETIC RUBBER SHEET
- Publication number 20030034612
- Publication date Feb 20, 2003
- MAGNET 4U CO., LTD.
- Bong-Seok Yoon
- F41 - WEAPONS