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Science → Inventions and devices → Office supplies and equipment
ANSWERS: 1
  • Official Know-It-All
    In 1969, bar codes were used to track axles in a General Motors plant and sort shipments at a General Trading Company distribution facility. Inexpensive lasers and integrated circuits facilitated better barcode technology, and after the Universal Product Code was adopted in 1973, bar code use became widespread.

    Source:

    barcoding.com: Barcode History

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