A CITED NAME — REFERENCED BY 1 ENTRY
Wikipedia — Violet ray
Follow the source → en.wikipedia.org/wiki/Violet_rayNAMING A SOURCE IS NOT ENDORSING IT. BELOW: WHAT EACH CITING ENTRY SAYS ABOUT THIS NAME, IN ITS OWN CONTEXT.
The consolidated public record: device mechanism, era of use, and the regulatory endgame — lawsuits, recalls, and FDA seizures through the 1940s–50s, ending with the 1951 action against Master Electric, the last US manufacturer.