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发明名称
Plural system of sequentially responsive instruments
摘要
申请公布号
US2448461(A)
申请公布日期
1948.08.31
申请号
US19450590681
申请日期
1945.04.27
申请人
THOMAS A. EDISON, INCORPORATED
发明人
POSTAL ROBERT H.
分类号
G01R27/12
主分类号
G01R27/12
代理机构
代理人
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