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发明名称
DIAL TEST INDICATOR
摘要
申请公布号
CA524565(A)
申请公布日期
1956.05.01
申请号
CAD524565
申请日期
申请人
THE LUFKIN RULE COMPANY
发明人
CHARLES ZELNICK
分类号
主分类号
代理机构
代理人
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