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Toshihiko Yamashita

Overall (1989): #6,486 of 140,708Top 5%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4880963 Encoding magnetic cards 1989-11-14
4868914 Method for clearing unlocking key codes in an electronic locking device 1989-09-19
4851828 Electronic locking devices 1989-07-25