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经营范围
发明名称
Butterfly valve
摘要
申请公布号
GB2040405(A)
申请公布日期
1980.08.28
申请号
GB19790044090
申请日期
1979.12.21
申请人
WORCESTER CONTROLS CORP
发明人
分类号
F16K1/226;(IPC1-7):F16K1/22
主分类号
F16K1/226
代理机构
代理人
主权项
地址
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