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发明名称
ELECTRICAL RECORDER
摘要
申请公布号
CA515765(A)
申请公布日期
1955.08.16
申请号
CAD515765
申请日期
申请人
NEWSFAX (CANADA) LIMITED
发明人
GEORGE H. LEONARD;JOHN H. LONG
分类号
主分类号
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代理人
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