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发明名称
PISTON RING SPACER AND EXPANDER
摘要
申请公布号
CA599459(A)
申请公布日期
1960.06.07
申请号
CAD599459
申请日期
申请人
SEALED POWER CORPORATION
发明人
HOLLY M. OLSON
分类号
主分类号
代理机构
代理人
主权项
地址
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