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发明名称
Shaft seal
摘要
申请公布号
US2441618(A)
申请公布日期
1948.05.18
申请号
US19450636679
申请日期
1945.12.22
申请人
PITOMETER LOG CORPORATION
发明人
COLE EDWARD S.
分类号
F16J15/52
主分类号
F16J15/52
代理机构
代理人
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