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发明名称
OPENING MEANS FOR SEALED CONTAINERS
摘要
申请公布号
CA839546(A)
申请公布日期
1970.04.21
申请号
CAD839546
申请日期
申请人
ALUMINUM COMPANY OF AMERICA
发明人
ROBERT E. HEFFNER
分类号
主分类号
代理机构
代理人
主权项
地址
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