Senji Yanagi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Coitus assistance device for males
- Patent number 6,520,906
- Issue date Feb 18, 2003
- Senji Yanagi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
COITUS ASSISTANCE DEVICE FOR MALES
- Publication number 20030009082
- Publication date Jan 9, 2003
- Senji Yanagi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC