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发明名称
Twin by-pass valve
摘要
申请公布号
US1999505(A)
申请公布日期
1935.04.30
申请号
US19320628554
申请日期
1932.08.12
申请人
C. F. BRAUN & CO., INC.
发明人
KLAAS GUSTAVE P.
分类号
F16K11/20
主分类号
F16K11/20
代理机构
代理人
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