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发明名称
Sucker rod fatigue testing machine
摘要
申请公布号
US2245269(A)
申请公布日期
1941.06.10
申请号
US19390259772
申请日期
1939.03.04
申请人
SHELL DEVELOPMENT COMPANY
发明人
GILBERT WALTON E.
分类号
G01N3/32
主分类号
G01N3/32
代理机构
代理人
主权项
地址
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