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发明名称
GATE DEVICE FOR EARTH AND SAND TAKEOFF PORT IN SHIELD EXCAVATOR
摘要
申请公布号
JPS63142190(A)
申请公布日期
1988.06.14
申请号
JP19860288956
申请日期
1986.12.05
申请人
HITACHI CONSTR MACH CO LTD
发明人
TAYAMA MINORU
分类号
E21D9/12;E21D9/06
主分类号
E21D9/12
代理机构
代理人
主权项
地址
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