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发明名称
Diaphragm valve
摘要
申请公布号
US2121549(A)
申请公布日期
1938.06.21
申请号
US19360059698
申请日期
1936.01.18
申请人
THE WESTINGHOUSE AIR BRAKE COMPANY
发明人
MENEAL DONALD L.
分类号
F16K7/14
主分类号
F16K7/14
代理机构
代理人
主权项
地址
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