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发明名称
Piston ring
摘要
申请公布号
US2723170(A)
申请公布日期
1955.11.08
申请号
US19520287079
申请日期
1952.05.10
申请人
BAUER EDWARD L
发明人
BAUER EDWARD L.
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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