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发明名称
STOLLENABSCHLUSSSCHUETZ.
摘要
申请公布号
DE1711074(U)
申请公布日期
1955.11.17
申请号
DE195500D0055U
申请日期
1955.03.12
申请人
DORTMUNDER UNION BRUECKENBAU AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
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