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2. Morse code - Wikipedia

   en.wikipedia.org/wiki/Morse_code

   Chart of the Morse code 26 letters and 10 numerals [1]. This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur [2]. Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs.

3. NATO phonetic alphabet - Wikipedia

   en.wikipedia.org/wiki/NATO_phonetic_alphabet

   Soon after the code words were developed by ICAO (see history below), they were adopted by other national and international organizations, including the ITU, the International Maritime Organization (IMO), the United States Federal Government as Federal Standard 1037C: Glossary of Telecommunications Terms [5] and its successors ANSI T1.523-2001 [6] and ATIS Telecom Glossary (ATIS-0100523.2019 ...

4. Hebern rotor machine - Wikipedia

   en.wikipedia.org/wiki/Hebern_rotor_machine

   Hebern single-rotor machine patent #1,510,441. The key to the Hebern design was a disk with electrical contacts on either side, known today as a rotor.Linking the contacts on either side of the rotor were wires, with each letter on one side being wired to another on the far side in a random fashion.

5. Printer tracking dots - Wikipedia

   en.wikipedia.org/wiki/Printer_tracking_dots

   Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and copiers produce on every printed page that identifies the specific device that was used ...

6. The Cricut Venture is a $1,000 cutting machine for the most ...

   www.engadget.com/the-cricut-venture-is-a-1000...

   Cricut, a company that makes popular cutting machines for crafting projects, announced a new model today. Although its devices are relatively affordable, the new Cricut Venture is a higher-end ...

7. Duplicating machines - Wikipedia

   en.wikipedia.org/wiki/Duplicating_machines

   Duplicating machines were the predecessors of modern document-reproduction technology. They have now been replaced by digital duplicators, scanners, laser printers and photocopiers, but for many years they were the primary means of reproducing documents for limited-run distribution.