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经营范围
发明名称
GAS SAFETY VALVE
摘要
申请公布号
JPS5690174(A)
申请公布日期
1981.07.22
申请号
JP19800049582
申请日期
1980.04.17
申请人
TOKYO GAS CO LTD;KOYO SANGYO CO
发明人
OOYAMA KUNIYOSHI
分类号
F16K17/34
主分类号
F16K17/34
代理机构
代理人
主权项
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