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发明名称
Device for varying the current flow in an electric circuit
摘要
申请公布号
US2186222(A)
申请公布日期
1940.01.09
申请号
US19380214368
申请日期
1938.06.17
申请人
WILLARD L. MORGAN
发明人
WILCOX ROBERT L.
分类号
G05F1/34
主分类号
G05F1/34
代理机构
代理人
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地址
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