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Siemens Fernsprecher Querschnitt. Siemensscher Fernsprecher Querschnitt ca original upload date Meyers author Original uploader was Asb at org de PDMeyers Original upload log page de SiemensFernspreherQuerschnitt Asb bytes no Siemens telephones History of telephony Images from Meyers Konversationslexikon th edition