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发明名称
CROSSING OF BRANCHING DEVICE
摘要
申请公布号
JPS5625501(A)
申请公布日期
1981.03.11
申请号
JP19800075666
申请日期
1980.06.06
申请人
ELEKTRO THERMIT GMBH
发明人
BERUNTO YOAHIMU KENPA
分类号
E01B7/14
主分类号
E01B7/14
代理机构
代理人
主权项
地址
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