AUDIO BAND MODULATOR/DEMODULATOR DEVICE FOR RECEPTION AND TRANSMISSION OF DIGITAL DATA WITH RECOGNITION OF STANDARD COMMUNICATION SYSTEMS BY CALLING DEVICE
摘要
申请公布号
GB2194710(B)
申请公布日期
1990.08.01
申请号
GB19870017761
申请日期
1987.07.27
申请人
PAOLO * PRANDINI;FRANCESCO * RITI;ALFREDO * WELTERT
发明人
PAOLO * PRANDINI;FRANCESCO * RITI;ALFREDO * WELTERT
