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发明名称
摘要
申请公布号
JPS5456676(U)
申请公布日期
1979.04.19
申请号
JP19770131140U
申请日期
1977.09.28
申请人
发明人
分类号
F16L9/12;B01D39/16;B32B5/32;C08F12/20;F16L11/12;(IPC1-7):B32B5/32
主分类号
F16L9/12
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