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经营范围
发明名称
WATER SEAL CONSTRUCTION OF SPHERICAL VALVE
摘要
申请公布号
JPS5554772(A)
申请公布日期
1980.04.22
申请号
JP19780126212
申请日期
1978.10.16
申请人
HITACHI LTD
发明人
SHINOHARA MORIMICHI
分类号
F16K5/20
主分类号
F16K5/20
代理机构
代理人
主权项
地址
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