The Remington Rand 409 refers to a model of typewriter produced by the Remington Rand company, which was a significant manufacturer of typewriters and office equipment in the 20th century. The Remington Rand 409 is known for its portable design and durability, characteristic of many typewriters produced during that era.

Ancestors (6)

  1. Programmable calculators
  2. History of computing hardware
  3. History of computing
  4. History of mathematics
  5. Mathematics
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