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发明名称
PRECAST CATACOMB UNIT OF SINGLE OR MULTISTOREY TYPE
摘要
申请公布号
PL134489(B1)
申请公布日期
1985.08.31
申请号
PL19810232774
申请日期
1981.08.24
申请人
发明人
分类号
E04H;E04H13/00;(IPC1-7):E04H13/00
主分类号
E04H
代理机构
代理人
主权项
地址
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