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发明名称
Improvements relating to rotatable ball valves
摘要
申请公布号
GB1126111(A)
申请公布日期
1968.09.05
申请号
GB19660000338
申请日期
1966.01.04
申请人
MASAO OKADO;YOSHITO ADACHI
发明人
分类号
F16K5/20
主分类号
F16K5/20
代理机构
代理人
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