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发明名称
DIAPHRAGM VALVES
摘要
申请公布号
CA681972(A)
申请公布日期
1964.03.10
申请号
CAD681972
申请日期
申请人
GRINNELL COMPANY OF CANADA
发明人
HENRY W. BOTELER
分类号
主分类号
代理机构
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