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| View Original: | Computer network and firewall specialist Adam Lasser with a telegraph signal analyzer machine.jpg (1310x1985) | |||
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| Keywords: Computer network and firewall specialist Adam Lasser with a telegraph signal analyzer machine.jpg en This machine analyzed electrical signals sent over telegraph wires held by network and firewall computer specialist Adam Lasser in October 2012 2012-10-21 14 15 02 own Tomwsulcer cc-zero Consent Uploaded with UploadWizard Telegraphy Telecommunications equipment | ||||
