Yuuji Hamada

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ultrafine tube and method for its production
- Patent number 4,874,646
- Issue date Oct 17, 1989
- Sanyo Electric Co., Ltd.
- Yoshikazu Tsujino
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL