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发明名称
Improvements in or relating to check valves
摘要
申请公布号
GB829931(A)
申请公布日期
1960.03.09
申请号
GB19570015319
申请日期
1957.05.14
申请人
SCOVILL MANUFACTURING COMPANY
发明人
分类号
B60C29/06
主分类号
B60C29/06
代理机构
代理人
主权项
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