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发明名称
CENTRIFUGAL AND FACE CONTACT SEAL
摘要
申请公布号
CA840304(A)
申请公布日期
1970.04.28
申请号
CAD840304
申请日期
申请人
WORTHINGTON CORPORATION (1967)
发明人
JOHN G. WILLIAMS
分类号
主分类号
代理机构
代理人
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地址
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