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经营范围
发明名称
Diaphragm valve
摘要
申请公布号
US2863631(A)
申请公布日期
1958.12.09
申请号
US19560619024
申请日期
1956.10.29
申请人
GRINNELL CORPORATION
发明人
BOTELER HENRY W.
分类号
F16K7/12
主分类号
F16K7/12
代理机构
代理人
主权项
地址
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