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发明名称
Sealing ring
摘要
申请公布号
US2090627(A)
申请公布日期
1937.08.24
申请号
US19360073061
申请日期
1936.04.07
申请人
THE HALL ROTARY VALVE MOTOR CO.
发明人
HALL CHARLES W.
分类号
F01L7/16
主分类号
F01L7/16
代理机构
代理人
主权项
地址
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