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发明名称
UEberdruckventil fuer Gasschutzraeume
摘要
申请公布号
DE729639(C)
申请公布日期
1942.12.19
申请号
DE1936D073710D
申请日期
1936.10.18
申请人
DRAEGERWERK HEINR.;BERNH. DRAEGER
发明人
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主分类号
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