| 发明名称 |
Security drain plug for armor and the like |
| 摘要 |
A drain plug is disclosed for use with hollow structures which prevents the insertion of an external probe into the structure internal cavity.
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| 申请公布号 |
US5058858(A) |
申请公布日期 |
1991.10.22 |
| 申请号 |
US19910637241 |
申请日期 |
1991.01.03 |
| 申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
KORPI, JOHN G. |
| 分类号 |
F16L55/11 |
主分类号 |
F16L55/11 |
| 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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