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经营范围
发明名称
Timing circuit
摘要
申请公布号
US2773221(A)
申请公布日期
1956.12.04
申请号
US19520303986
申请日期
1952.08.12
申请人
COLUMBIA BROADCASTING SYSTEM, INC.
发明人
SHAW LLOYD E.
分类号
B23K11/25
主分类号
B23K11/25
代理机构
代理人
主权项
地址
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