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发明名称
LOCK-BOLT FIXING MATERIAL
摘要
申请公布号
JPS63226499(A)
申请公布日期
1988.09.21
申请号
JP19870271419
申请日期
1987.10.27
申请人
OSAKA CEMENT KK;RAILWAY TECHNICAL RES INST
发明人
MAEDA MASAO;YOKOO HAJIME;YASUI KAZUHIRO
分类号
E21D20/00
主分类号
E21D20/00
代理机构
代理人
主权项
地址
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