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发明名称
GAS DIFFUSION PREVENTING DEVICE FOR GAS WORKS
摘要
申请公布号
JPH01261595(A)
申请公布日期
1989.10.18
申请号
JP19880086204
申请日期
1988.04.06
申请人
ONISHI YASUO
发明人
ONISHI YASUO
分类号
F16L55/18
主分类号
F16L55/18
代理机构
代理人
主权项
地址
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