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发明名称
Valve rotating device
摘要
申请公布号
US2935058(A)
申请公布日期
1960.05.03
申请号
US19580706931
申请日期
1958.01.03
申请人
DOOLEY WILLIAM D
发明人
DOOLEY WILLIAM D.
分类号
F01L1/32
主分类号
F01L1/32
代理机构
代理人
主权项
地址
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