发明授权
US5181240A Data circuit-terminating equipment with power source device 失效
数据电路终端设备与电源设备

Data circuit-terminating equipment with power source device
摘要:
A data circuit-terminating equipment with a power source device attached thereto comprising a data circuit-terminating device such as a modem system including a power source device for supplying a power extracted from a telephone circuit to the data circuit-terminating device.
公开/授权文献
信息查询
0/0