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发明名称
Sand-, Erdfilter od. dgl. fuer Luftschutzraeume
摘要
申请公布号
DE965548(C)
申请公布日期
1957.06.13
申请号
DE1955D020441
申请日期
1955.05.12
申请人
DRAEGERWERK, HEINR. & BERNH. DRAEGER
发明人
分类号
E04H9/04
主分类号
E04H9/04
代理机构
代理人
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地址
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