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发明名称
Pneumatically balanced valve
摘要
申请公布号
US1883838(A)
申请公布日期
1932.10.18
申请号
US19310583093
申请日期
1931.12.24
申请人
ESTEY ORGAN COMPANY
发明人
WARREN SAMUEL RUSSELL
分类号
F16K31/06;F16K31/126
主分类号
F16K31/06
代理机构
代理人
主权项
地址
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