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发明名称
GERAET ZUR VERHINDERUNG DES SCHNARCHENS.
摘要
申请公布号
DE1698628(U)
申请公布日期
1955.05.18
申请号
DE195400K6883U
申请日期
1954.08.28
申请人
HEINRICH KOOYMANN
发明人
HEINRICH KOOYMANN
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主分类号
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