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经营范围
发明名称
Praeservativ
摘要
A male device for facilitating sexual intercourse of elastic material comprising a check valve allowing fluid flow only out of an interior space in the device. The device may also serve as a male contraceptive.
申请公布号
DE1947301(A1)
申请公布日期
1971.03.25
申请号
DE19691947301
申请日期
1969.09.18
申请人
WEGENER,HENRY
发明人
WEGENER,HENRY
分类号
A61F6/04
主分类号
A61F6/04
代理机构
代理人
主权项
地址
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