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发明名称
摘要
申请公布号
JPS5330368(B2)
申请公布日期
1978.08.26
申请号
JP19740006398
申请日期
1974.01.10
申请人
发明人
分类号
F16L21/08
主分类号
F16L21/08
代理机构
代理人
主权项
地址
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