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发明名称
VENTIL FUER SAUGPROTHESEN.
摘要
申请公布号
DE1619213(U)
申请公布日期
1951.02.01
申请号
DE1950F001486U
申请日期
1950.11.16
申请人
HANS FEIERABEND
发明人
HANS FEIERABEND
分类号
主分类号
代理机构
代理人
主权项
地址
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