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经营范围
发明名称
Shaft seal mechanism
摘要
申请公布号
US2577292(A)
申请公布日期
1951.12.04
申请号
US19480000138
申请日期
1948.01.02
申请人
PHILLIPS PETROLEUM COMPANY
发明人
WEBER LOUIS J.
分类号
F16J15/40
主分类号
F16J15/40
代理机构
代理人
主权项
地址
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