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发明名称
AMPLIFIER FAILURE INDICATOR
摘要
申请公布号
CA777399(A)
申请公布日期
1968.01.30
申请号
CAD777399
申请日期
申请人
NORTHERN ELECTRIC COMPANY LIMITED
发明人
WALLACE E. CLARKE
分类号
主分类号
代理机构
代理人
主权项
地址
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