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PATENTED
INVENTIONS
Some
patents are available for licensing call 781-383-2002
6,950,373 “Multiply
Resonant Wideband
Transducer Apparatus,” 9/27/05
6,734,604 “Multimode
Synthesized Beam
Transduction Apparatus,” 5/11/04
6,654,316 “Single-Sided
Electro-Mechanical Transduction Apparatus,” 11/25/03
4,443,731 "Hybrid
Piezoelectric
Magnetostrictive Transducer," 4/17/96
5,184,332 "Multiport Underwater Sound Transducer," 2/2/93
5,047,683 "Hybrid
Transducer," 9/10/91
4,864,548 "Flextensional Transducer," 9/5/89
4,845,688
"Electro-Mechanical
Transduction Apparatus," 7/4/89
4,754,441 "Directional
Flextensional Transducer,"6/28/88
4,742,499 "Flextensional
Transducer," 5/3/88
4,642,802 "Elimination of
Magnetic Biasing," 2/20/87
4,438,509 "Transducer
with
Tensioned Wire Precompression," 3/20/84
4,332,986 "Speaker System
Employing Passive Radiator," 6/1/82
4,326,275 "Directional Transducer" 4/20/82
3,933,219 "Speaker System," 1/20/76
3,924,259 "Array of
Multicellular Transducer," 12/2/75
3,378,814 "Directional
Transducer," 4/16/68
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