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发明名称
Piston ring for internal combustion engines
摘要
申请公布号
US3404606(A)
申请公布日期
1968.10.08
申请号
US19650517379
申请日期
1965.12.29
申请人
HERMANN PAPST
发明人
PAPST HERMANN
分类号
C22C27/04;F16J9/26
主分类号
C22C27/04
代理机构
代理人
主权项
地址
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