Teleprinter : principles of operation, maintenance & adjustment instructions / Creed and Company Limited
Description, principle of operation and maintenance instructions : combined teleprinter keyboard perforator and automatic transmitter, teleprinter keyboard perforator / Creed and Company Limited
Teleimpressor 100 : instruções de manejo / Siemens
L'exposition organisée par la société Siemens & Halske AG. à l'occasion de la réunion de Berlin du C.C.I. / W. Rihl et H. Nottebrock