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发明名称
Improvements in circuit controllers for signs and the like
摘要
申请公布号
GB402178(A)
申请公布日期
1933.11.30
申请号
GB19320018958
申请日期
1932.07.05
申请人
AUSTIN THOMAS
发明人
分类号
H01F29/12
主分类号
H01F29/12
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代理人
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