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发明名称
SHAFT SEAL
摘要
申请公布号
CA396008(A)
申请公布日期
1941.04.22
申请号
CAD396008
申请日期
申请人
FRICK COMPANY
发明人
FRANCIS SHENTON
分类号
主分类号
代理机构
代理人
主权项
地址
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