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经营范围
发明名称
Lubricating device
摘要
申请公布号
US1840848(A)
申请公布日期
1932.01.12
申请号
US19270192093
申请日期
1927.05.17
申请人
THE SYMINGTON COMPANY
发明人
RICHARDS WILLARD F.
分类号
B61F17/22
主分类号
B61F17/22
代理机构
代理人
主权项
地址
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