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ARRANGEMENT FOR CONNECTING LONG-DISTANCE PAY PHONES TO PROGRAM-CONTROL AUTOMATIC INTER-CITY EXCHANGES
ARRANGEMENT FOR CONNECTING LONG-DISTANCE PAY PHONES TO PROGRAM-CONTROL AUTOMATIC INTER-CITY EXCHANGES
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机译:将长途付费电话连接到程序控制的自动城市间交换的安排
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摘要
the invention относитс to long-distance telephone св зи. the image.ретени simplification of the device.the device contains междугородньй phone 1, subscription line 2, a telephone set 3, which is ins
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