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发明名称
Valve mechanism
摘要
申请公布号
US1890051(A)
申请公布日期
1932.12.06
申请号
US19300438674
申请日期
1930.03.25
申请人
COOPER-BESSEMER CORPORATION
发明人
GEHRES HEWITT A.
分类号
F16K15/00
主分类号
F16K15/00
代理机构
代理人
主权项
地址
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