User talk:KKrubsack

From WikiProjectMed
Jump to navigation Jump to search

What is the status of the intellectual property on these plasma speakers? It seems the original patent has expired since it was from 1980. I'm asking as I'm considering creating a commercial speaker using derivative technology. ThVa (talk) 00:15, 30 August 2008 (UTC)[reply]

Retrieved from "https://mdwiki.org/wiki/User_talk:KKrubsack"