381 / | HD | ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES |
150 | DF | ELECTRO-ACOUSTIC AUDIO TRANSDUCER {18} |
386 | .~ Mounting or support feature of housed loudspeaker {9} | |
387 | DF | .~.~> Directional, directible, or movable |
388 | DF | .~.~> With furniture, clothing, or image display |
389 | DF | .~.~> In vehicle |
390 | DF | .~.~> Boom or support arm |
391 | DF | .~.~> Grille |
392 | DF | .~.~> Resilient |
393 | DF | .~.~> electrical insulation feature |
394 | DF | .~.~> Electrical hardware |
395 | DF | .~.~> Mechanical detail |