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发明名称
Piston ring
摘要
申请公布号
US1803309(A)
申请公布日期
1931.04.28
申请号
US19280281434
申请日期
1928.05.29
申请人
BUDLONG & FUNCHESS MOTOR PRODUCTS CO.
发明人
BUDLONG EDWARD J.
分类号
F16J9/06;F16J9/20
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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