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发明名称
Improvements in or relating to mechanism-selecting circuits
摘要
申请公布号
GB542081(A)
申请公布日期
1941.12.24
申请号
GB19400009179
申请日期
1940.05.24
申请人
ELECTRICAL RESEARCH PRODUCTS INC.
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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地址
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