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发明名称
Oscillating valve
摘要
申请公布号
US1911044(A)
申请公布日期
1933.05.23
申请号
US19300462275
申请日期
1930.06.19
申请人
THRASHER JOHN M
发明人
THRASHER JOHN M.
分类号
F16K3/34
主分类号
F16K3/34
代理机构
代理人
主权项
地址
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