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发明名称
POSITIVE WEDGE SEALING PISTON AND SLEEVE
摘要
申请公布号
CA570248(A)
申请公布日期
1959.02.10
申请号
CAD570248
申请日期
申请人
IVAN M. HOLSTEIN
发明人
IVAN M. HOLSTEIN
分类号
主分类号
代理机构
代理人
主权项
地址
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