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发明名称
AN ELECTRONIC SWITCH ARRANGEMENT
摘要
申请公布号
GB8925633(D0)
申请公布日期
1990.01.04
申请号
GB19890025633
申请日期
1989.11.13
申请人
WALTERS, RICHARD J
发明人
分类号
H03G1/00;H04R3/00
主分类号
H03G1/00
代理机构
代理人
主权项
地址
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