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发明名称
TUERVERSCHLUSS FUER SCHUTZRAEUME.
摘要
申请公布号
DE1753930(U)
申请公布日期
1957.10.10
申请号
DE195600ST386U
申请日期
1956.02.27
申请人
STEINBACH & VOLLMANN
发明人
分类号
主分类号
代理机构
代理人
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