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发明名称
SUCKER ROD TESTING MACHINE
摘要
申请公布号
CA399378(A)
申请公布日期
1941.09.16
申请号
CAD399378
申请日期
申请人
SHELL DEVELOPMENT COMPANY
发明人
WALTON E. GILBERT
分类号
主分类号
代理机构
代理人
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