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发明名称
Pressure equalizer
摘要
申请公布号
US2638932(A)
申请公布日期
1953.05.19
申请号
US19480020265
申请日期
1948.04.10
申请人
THE GEORGE E. FAILING SUPPLY COMPANY
发明人
ALEXANDER EMMETT LEE
分类号
F15B1/10;F16L55/052;F16L55/053
主分类号
F15B1/10
代理机构
代理人
主权项
地址
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