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发明名称
摘要
申请公布号
JPS5518620(B2)
申请公布日期
1980.05.20
申请号
JP19710066032
申请日期
1971.08.27
申请人
发明人
分类号
F16L9/16;B21C37/06;B29C53/00;B29C65/00;B29C65/18;B32B1/08;B32B15/08;(IPC1-7):B32B1/08
主分类号
F16L9/16
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代理人
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地址
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