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发明名称
Piston ring arrangement
摘要
申请公布号
US2178993(A)
申请公布日期
1939.11.07
申请号
US19390254143
申请日期
1939.02.02
申请人
WRIGHT AERONAUTICAL CORPORATION
发明人
HILL HENRY C.
分类号
F02F3/00;F16J9/20
主分类号
F02F3/00
代理机构
代理人
主权项
地址
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