How long did the Electric Article Surveillance (EAS) take to make?

The development of Electric Article Surveillance (EAS) technology began in the 1960s, with various systems being tested and patented throughout the 1970s. The technology evolved over time, with significant advancements occurring in the 1980s and 1990s, leading to its widespread adoption in retail environments. While the initial concept took several years to develop, the ongoing refinement and implementation of EAS systems have continued beyond that period.