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发明名称
SIGNALLING SYSTEM MODULATOR AND DE-MODULATOR
摘要
申请公布号
CA383735(A)
申请公布日期
1939.08.29
申请号
CAD383735
申请日期
申请人
TELEPHONE MANUFACTURING COMPANY LIMITED
发明人
LESLIE HAROLD PADDLE
分类号
主分类号
代理机构
代理人
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DIGITAL COMPARISON-TO-ANALOG SIGNAL CONVERTER
