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发明名称
DEVICE FOR CONNECTING VARIOUS FLOORS OF A CONSTRUCTION LOCATED AT DIFFERENT LEVELS
摘要
申请公布号
CA880606(A)
申请公布日期
1971.09.14
申请号
CAD880606
申请日期
申请人
CIREB S.A.
发明人
LEON PARENT
分类号
主分类号
代理机构
代理人
主权项
地址
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