Shinya Ishida

Follow

Person

Kashihara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electric light display apparatus of light blocking type
- Patent number 4,468,660
- Issue date Aug 28, 1984
- Kinki Nippon Tetsudo Kabushiki Kaisha
- Shinya Ishida
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS