发明名称 |
Intra-uterine contraceptive device |
摘要 |
An I.U.D. in which an inner base ring made from a resilient material and formed into a generally circular shape and which carries a jelly-like covering material over its entire extent having formed with a plurality of bead-like protrusions.
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申请公布号 |
US4182321(A) |
申请公布日期 |
1980.01.08 |
申请号 |
US19770855415 |
申请日期 |
1977.11.28 |
申请人 |
CSATARY, LASZLO K |
发明人 |
CSATARY, LASZLO K |
分类号 |
A61F6/14;(IPC1-7):A61F5/46 |
主分类号 |
A61F6/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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