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发明名称
Lubricant testing and demonstrating device
摘要
申请公布号
US1991713(A)
申请公布日期
1935.02.19
申请号
US19310571531
申请日期
1931.10.28
申请人
THE TEXAS COMPANY
发明人
WALKER JAMES B.
分类号
G01N33/30
主分类号
G01N33/30
代理机构
代理人
主权项
地址
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