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发明名称
Electronic timing device
摘要
申请公布号
US2306237(A)
申请公布日期
1942.12.22
申请号
US19400364681
申请日期
1940.11.07
申请人
PHOTOSWITCH, INCORPORATED
发明人
WOLFNER WILLIAM F.
分类号
H03K17/288
主分类号
H03K17/288
代理机构
代理人
主权项
地址
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