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发明名称
Composite piston ring
摘要
申请公布号
US2533805(A)
申请公布日期
1950.12.12
申请号
US19500143940
申请日期
1950.02.13
申请人
CARL HOLLEY MAJURE
发明人
HOLLEY MAJURE CARL
分类号
F16J9/20
主分类号
F16J9/20
代理机构
代理人
主权项
地址
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