| 发明名称 |
Double pipe and method of manufacturing the double pipe |
| 摘要 |
A double pipe (10) has an outer pipe (1) and an inner pipe (2) that is formed in a spiral or wavy configuration and is held by an inner circumferential face of the outer pipe (1). <IMAGE> <IMAGE> |
| 申请公布号 |
EP1447606(A1) |
申请公布日期 |
2004.08.18 |
| 申请号 |
EP20040003546 |
申请日期 |
2004.02.17 |
| 申请人 |
CALSONIC KANSEI CORPORATION |
发明人 |
TAKASAKI, HIROMI;TAKAMATSU, YOSHIKAZU |
| 分类号 |
B21D11/06;B21D11/14;B21D15/12;F16L9/18;F16L9/19;F28D7/02;F28F1/06;(IPC1-7):F16L7/00 |
主分类号 |
B21D11/06 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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