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发明名称
VOLLBLICK-ATEMSCHUTZMASKE FUER BRILLENTRAEGER.
摘要
申请公布号
DE1899686(U)
申请公布日期
1964.08.27
申请号
DE196400ST981U
申请日期
1964.03.03
申请人
DR. HUGO STOLTZENBERG
发明人
DR. HUGO STOLTZENBERG
分类号
主分类号
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代理人
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