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发明名称
Kalender-Signaluhr fuer hormonalen Empfaengnisschutz
摘要
申请公布号
DE1809953(A1)
申请公布日期
1970.06.18
申请号
DE19681809953
申请日期
1968.11.20
申请人
DUEVEL,CHRISTIAN;DUEVEL,FRIEDRICH
发明人
DUEVEL,CHRISTIAN;DUEVEL,FRIEDRICH
分类号
A61J7/04;G04B19/26
主分类号
A61J7/04
代理机构
代理人
主权项
地址
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