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发明名称
A DEVICE AND METHOD FOR PERFORMING SWITCHING OPERATIONS
摘要
申请公布号
GB8904923(D0)
申请公布日期
1989.04.12
申请号
GB19890004923
申请日期
1989.03.03
申请人
IMCO ELECTRO-OPTICS LIMITED
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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