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发明名称
Check valve
摘要
申请公布号
GB796162(A)
申请公布日期
1958.06.04
申请号
GB19550021333
申请日期
1955.07.22
申请人
EDWARD MALCOLM SMITH
发明人
分类号
F16K15/03
主分类号
F16K15/03
代理机构
代理人
主权项
地址
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