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Oskar Heil |
Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms
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1976-09-03 |
1978-08-15 |
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Electro-acoustic transducer
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1976-09-03 |
1977-11-01 |
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Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
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1979-05-31 |
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1980-09-15 |
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Necoechea Robert W |
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1981-09-25 |
1985-10-01 |
Tadashi Sawafuji |
Plane speaker
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1982-02-12 |
1983-08-19 |
Richard Rapp Robert |
Haut-parleur a ruban pour les sons aigus
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1983-11-10 |
1987-02-20 |
Benard Alain |
Haut-parleur a haut rendement et a grande puissance admissible
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1985-05-08 |
1986-10-23 |
Elac Phonosysteme GmbH, 2300 Kiel |
Elektrodynamischer Lautsprecher
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1994-08-29 |
1996-04-15 |
Centara Patent Ab |
Elektroakustisk omvandlare
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1995-10-27 |
1997-05-01 |
Harman International Industries Incorporated |
Multiple cone transducer
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1997-07-30 |
1997-08-28 |
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1998-06-10 |
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ブロードバンド拡声器またはヘッドホン用音響変換器
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Leibniz Inst Fuer Neurobiologi |
Akustischer Wandler für Kopfhörer
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Leibniz Inst Fuer Neurobiologi |
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Flexible ribbon speaker
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2016-10-04 |
Tymphany Hk Limited |
Acoustic transducer comprising a plurality of coaxially arranged diaphragms
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Folile für einen Jet-Hochtonlautsprecher nach dem Air-Motion Prinzip
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Folie für einen Air-motion Lautsprecher
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Magnetsystem
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2007-10-04 |
Immersion Technology Property Limited |
Loudspeaker system with acoustic equalisation
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2007-05-02 |
2009-11-26 |
Mundorf Eb Gmbh |
Membran-Anordnung für einen elektrodynamischen Schallwandler und Lautsprecher mit einer derartigen Membran-Anordnung
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Membrananordnung für einen Air-Motion-Transformer (AMT) und Schallwandler mit einer solchen Membrananordnung
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Siemens Aktiengesellschaft |
Vorrichtung zur Erzeugung von breitbandigem Schall im Hörbereich des Menschen
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音響的トランスデューサユニット
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Mikrophon unter Verwendung eines magnetoelastischen Effekts
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