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发明名称
Piston ring
摘要
申请公布号
US1997714(A)
申请公布日期
1935.04.16
申请号
US19340739661
申请日期
1934.08.13
申请人
AUGUSTUS BOUDREAU;COBBINS PEYTON L
发明人
BOUDREAU AUGUSTUS;COBBINS PEYTON L.
分类号
F16J9/06
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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