首页>
外国专利>
An electronic fault indication - and after straightening expensive process for a system for transmission of digitally encoded messages, the via a common channel between a central and a number of external stations is operated, and station for carrying out the method
An electronic fault indication - and after straightening expensive process for a system for transmission of digitally encoded messages, the via a common channel between a central and a number of external stations is operated, and station for carrying out the method