Takao Sakai

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Patents Grantslast 30 patents

Information Patent Grant
Dual-tube heat pipe type heat exchanger
- Patent number 4,909,316
- Issue date Mar 20, 1990
- Doryokuro Kakunenryo Kaihatsu Jigyodan
- Mitsuru Kamei
- F28 - HEAT EXCHANGE IN GENERAL