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发明名称
VOICE CONTROLLED REVERSING DEVICE FOR TELEPHONOGRAPH
摘要
申请公布号
CA494212(A)
申请公布日期
1953.07.07
申请号
CAD494212
申请日期
申请人
DAPHNE INVESTMENT TRUST
发明人
MAX HANDSCHIN;KURT WAGNER
分类号
主分类号
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