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发明名称
摘要
申请公布号
JPS5830807(Y2)
申请公布日期
1983.07.07
申请号
JP19780017405U
申请日期
1978.02.10
申请人
发明人
分类号
B61B13/04;B61B13/06;E01B25/12;(IPC1-7):E01B25/12
主分类号
B61B13/04
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