COP was invented in the 1930s, and first used on automobiles in the 1970s: https://gtc.ca/blog/the-different-types-of-ignition-systems/#elementor-toc__heading-a

COP was invented in the 1930s, and first used on automobiles in the 1970s: https://gtc.ca/blog/the-different-types-of-ignition-systems/#elementor-toc__heading-anchor-4 https://gtc.ca/blog/the-different-types-of-ignition-systems/...