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经营范围
发明名称
Labyrinth packing
摘要
申请公布号
US2458988(A)
申请公布日期
1949.01.11
申请号
US19450586109
申请日期
1945.04.02
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
GAYER GEORGE F.
分类号
F16J15/447
主分类号
F16J15/447
代理机构
代理人
主权项
地址
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