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发明名称
摘要
申请公布号
JPS6319679(B2)
申请公布日期
1988.04.23
申请号
JP19830202235
申请日期
1983.10.27
申请人
TOYO GOMU KOGYO KK;KAJIMA KENSETSU KK
发明人
YAGI KENJI;MATSUI MASAKUNI;HATSUTORI EIICHI;KAMAKARI RYUTARO
分类号
E21C37/04;E21C37/00;E21C37/10
主分类号
E21C37/04
代理机构
代理人
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