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发明名称
BEARING SEAL
摘要
申请公布号
CA583211(A)
申请公布日期
1959.09.15
申请号
CAD583211
申请日期
申请人
JOHN H. SHAFER AND OLIN J. SHAFER;J. ARTHUR GROSS;THE NORTHERN TRUST COMPANY
发明人
JULIUS E. SHAFER
分类号
主分类号
代理机构
代理人
主权项
地址
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