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发明名称
Shaft seal for furnaces
摘要
申请公布号
US2761708(A)
申请公布日期
1956.09.04
申请号
US19520268856
申请日期
1952.01.29
申请人
OGLEBAY, NORTON AND COMPANY
发明人
HALEY KENNETH M.;TRASK HAROLD V.
分类号
F16J15/54
主分类号
F16J15/54
代理机构
代理人
主权项
地址
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