Lei Tian

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Tokai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dental magnetic attachment
- Patent number 6,299,450
- Issue date Oct 9, 2001
- Aichi Steel Corporation
- Yoshinobu Honkura
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Dental magnetic attachment
- Patent number 5,678,998
- Issue date Oct 21, 1997
- Aichi Steel Works, Ltd.
- Yoshinobu Honkura
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE