Mitsuru Saito

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Time card and time recorder system using time card
- Patent number 6,817,537
- Issue date Nov 16, 2004
- Amano Corporation
- Hirosada Watanabe
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Information Patent Application
Time card and time recorder system using time card
- Publication number 20030178497
- Publication date Sep 25, 2003
- Hirosada Watanabe
- G07 - CHECKING-DEVICES