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经营范围
发明名称
Self-lubricating bearing for heavy loads
摘要
申请公布号
US2680259(A)
申请公布日期
1954.06.08
申请号
US19510229720
申请日期
1951.06.04
申请人
MERRIMAN BROS. INC.
发明人
MILK ROBERT L.
分类号
E01D19/04
主分类号
E01D19/04
代理机构
代理人
主权项
地址
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