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发明名称
STAHLBETONSCHACHTABDECKUNG, INSBESONDERE FUER KABELSCHAECHTE U. DGL.
摘要
申请公布号
DE1856086(U)
申请公布日期
1962.08.02
申请号
DE196200ST522U
申请日期
1962.03.24
申请人
FA. JOSEF STEWING
发明人
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主分类号
代理机构
代理人
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