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摘要
申请公布号
JPS5514515(Y2)
申请公布日期
1980.04.02
申请号
JP19750131454U
申请日期
1975.09.25
申请人
发明人
分类号
F16L58/02;B32B3/02;B32B27/04;B32B27/12;B32B27/18;E02D5/60;E02D31/06;F16L58/12;(IPC1-7):B32B27/18
主分类号
F16L58/02
代理机构
代理人
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地址
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