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发明名称
Packing ring
摘要
申请公布号
US3235275(A)
申请公布日期
1966.02.15
申请号
US19630267035
申请日期
1963.03.21
申请人
THE COOPER-BESSEMER CORPORATION
发明人
HART ROBERT J.
分类号
F16J15/26
主分类号
F16J15/26
代理机构
代理人
主权项
地址
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