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发明名称
Piston ring
摘要
申请公布号
US2496048(A)
申请公布日期
1950.01.31
申请号
US19450621787
申请日期
1945.10.11
申请人
AUTO-DIESEL PISTON RING COMPANY
发明人
HEINRICH AUGUST H.
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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