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发明名称
SEALING APPARATUS
摘要
申请公布号
CA796554(A)
申请公布日期
1968.10.15
申请号
CAD796554
申请日期
申请人
DOUGHBOY INDUSTRIES
发明人
JOHN J. GREVICH
分类号
主分类号
代理机构
代理人
主权项
地址
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