System assembly for mounting electrical apparatus on walls and c
Tension-adjustable mechanism for stethoscope earpieces
Toy stethoscope
Transducer support pad
Transducer with rearwardly disposed damping elements
Transmitter assembly for a telephone handset
Tremolo effect producing system
Trumpet horn speaker
Tunable stethoscope
Two way dynamic and electrostatic speaker enclosure with side ve
Two-way loudspeaker for vehicle
Ultra-small portable sound reproducing apparatus
Underwater audio system
Underwater voice communicator
Unitary tuned port and loudspeaker frame
User disposable member for use within the ear canal and...
Using fuzzy logic to determine elevator car assignment utility
Variable ratio full range direct-reflected pyramid inclined loud
Variable thickness cone for a dynamic speaker and quality contro
Vented acoustic ear mold for hearing aids