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发明名称
SHIELD PROPULSIVE CONSTRUCTION
摘要
申请公布号
JPH01239299(A)
申请公布日期
1989.09.25
申请号
JP19880064703
申请日期
1988.03.19
申请人
HAZAMA GUMI LTD
发明人
TSURUOKA SUSUMU;FUJIMOTO AKIO
分类号
E21D9/06;E21D11/10
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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