发明名称 |
Multi-walled tube and method of manufacture |
摘要 |
A method of forming multi-wall tube from a single-wall piece of tube. The multi-wall tube is formed by relative motion between a die shoe and the single-wall tube to deform the material.
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申请公布号 |
US2008169489(A1) |
申请公布日期 |
2008.07.17 |
申请号 |
US20060588803 |
申请日期 |
2006.10.27 |
申请人 |
PETKOVSEK ROBERT RAYMOND;HAGEDORN LOUIS |
发明人 |
PETKOVSEK ROBERT RAYMOND;HAGEDORN LOUIS |
分类号 |
H01L31/112;H01L29/80 |
主分类号 |
H01L31/112 |
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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