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经营范围
发明名称
SEAL RING
摘要
申请公布号
CA684321(A)
申请公布日期
1964.04.14
申请号
CAD684321
申请日期
申请人
THE WEATHERHEAD COMPANY
发明人
FRANK J. HANBACK
分类号
主分类号
代理机构
代理人
主权项
地址
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