ALEXANDRIA, Va., July 3 -- United States Patent no. 12,348,917, issued on July 1, was assigned to Concierge Audio LLC (Covington, Ga.).

"Speaker system with exchangeable electronic unit" was invented by Richard Guy Kimbell III (Covington, Ga.) and Jeffrey Charles Kussard (Minneapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "An audio output device is disclosed. The audio output device may be a speaker system. The system may include a cabinet and a spring roller disposed at a cabinet bottom surface facing away from a cabinet top surface. The cabinet may house a speaker. The system may further include a base plate attached to cabinet side surfaces such that the base plate may be parallel to the cabinet bo...