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发明名称
Valve structure
摘要
申请公布号
US2157240(A)
申请公布日期
1939.05.09
申请号
US19350007546
申请日期
1935.02.21
申请人
EX-CELL-O CORPORATION
发明人
KEEL ADOLF
分类号
F15B11/12;F15B11/13;F15B13/04
主分类号
F15B11/12
代理机构
代理人
主权项
地址
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