| 发明名称 |
SAFETY DEVICE PROVIDING VALVE SEAT AND BALL VALVE IN HOLE OF COCK IN CLOSURE AND BEING OMITTED BALL VALVE CONTACTING TO VALVE SEAT BY WAY OF TWISTING CLOSURE BY PRESSURE |
| 摘要 |
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| 申请公布号 |
JPS5372234(A) |
申请公布日期 |
1978.06.27 |
| 申请号 |
JP19760148950 |
申请日期 |
1976.12.10 |
| 申请人 |
YAMAGUCHI GINZABUROU;YAMAGUCHI TORANOSUKE |
发明人 |
YAMAGUCHI GINZABUROU;YAMAGUCHI TORANOSUKE |
| 分类号 |
F16K17/34;F16K5/00;F16K5/02 |
主分类号 |
F16K17/34 |
| 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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