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发明名称
Piston ring assembly
摘要
申请公布号
US2833606(A)
申请公布日期
1958.05.06
申请号
US19550492233
申请日期
1955.03.04
申请人
PERFECT CIRCLE CORPORATION
发明人
BRENNEKE ARTHUR M.
分类号
F16J9/06
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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