Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL191396ApublicationCriticalpatent/NL191396A/xx
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
H04L17/02—Apparatus or circuits at the transmitting end
H04L17/04—Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars
H04L17/08—Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars combined with perforating apparatus