发明名称 |
ERECT EXTINGUISHER OF WAVING WITH X-SHAPED HOLES |
摘要 |
The front part of X-shaped holes receives the impactive waving and a surging spaces in it's rear part. So the energy of high height and long length waving is decreased by those. First it decreases the energy of waving in X-shaped holes which consist of multilayers and extinguishes the rest energy in surging spaces.
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申请公布号 |
KR800000021(B1) |
申请公布日期 |
1980.01.24 |
申请号 |
KR19740001484 |
申请日期 |
1974.02.14 |
申请人 |
DOUA KENSETSU KOGYO CO LTD |
发明人 |
SHIMADA OSAHIKO |
分类号 |
E02B3/06;(IPC1-7):E02B3/06 |
主分类号 |
E02B3/06 |
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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