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发明名称
Telegraph receiver
摘要
申请公布号
US1967216(A)
申请公布日期
1934.07.24
申请号
US19330701372
申请日期
1933.12.07
申请人
MAX AMANN;ALFRED LAHL
发明人
AMANN MAX;LAHL ALFRED
分类号
H04L17/24
主分类号
H04L17/24
代理机构
代理人
主权项
地址
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