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1926-12-29 |
1930-01-07 |
Adolph A Thomas |
Electric sound-reproducing apparatus
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1935-06-04 |
1937-02-16 |
Magnavox Co |
Sound reproducer
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1935-08-26 |
1937-08-24 |
Reconstruction Finance Corp |
Sound reproducer
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1938-08-24 |
1941-02-11 |
Rca Corp |
Signal translating apparatus
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1945-05-08 |
1950-02-07 |
Operadio Mfg Co |
Double diaphragm loud-speaker
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1955-02-21 |
1956-07-03 |
Shaffer Music Company |
Built-in sound system for home
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1955-05-23 |
1958-01-14 |
Benjamin W Lowell |
High frequency speaker baffle
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1962-01-31 |
1966-03-15 |
Gen Electric |
Permanent magnet type loudspeakers
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1962-11-16 |
1965-08-17 |
Philip C Surh |
Dynamic speaker
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1963-05-24 |
1966-01-18 |
Plastic Mold & Engineering Co |
Dynamic ear phone
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1963-07-18 |
1965-06-08 |
Westinghouse Electric Corp |
Loudspeaker assembly
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1966-12-28 |
1971-05-25 |
Aiwa Co |
Dynamic microphone
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USD250586S
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1976-04-15 |
1978-12-19 |
Altec Corporation |
Loudspeaker
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1976-12-02 |
1980-09-02 |
Tenna Corporation |
Two-way speaker with transformer-coupled split coil
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JPS5851514Y2
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1979-01-10 |
1983-11-24 |
松下電工株式会社 |
方向可変取付装置
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1979-04-02 |
1984-03-27 |
Rene Schweizer |
System assembly for mounting electrical apparatus on walls and ceilings
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1979-04-30 |
1981-07-07 |
Pawelzick George K |
Speaker adapter
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JPS55150699A
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1979-05-15 |
1980-11-22 |
Kenkichi Tsukamoto |
Speaker
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USD270909S
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1980-11-08 |
1983-10-11 |
Pioneer Kabushiki Kaisha |
Loudspeaker
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1981-11-27 |
1983-10-13 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren zur Erzeugung einer drehzahlproportionalen Spannung und Schaltungsanordnung zur Durchführung des Verfahrens
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1982-08-10 |
1985-01-08 |
R&C Chiu International, Inc. |
Loudspeaker
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JPS59164390U
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1983-04-15 |
1984-11-05 |
株式会社 双信音響製作所 |
同軸型複合スピ−カ
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1983-04-28 |
1985-11-19 |
Harman International Industries Incorporated |
Multi-driver loudspeaker
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USD289041S
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1984-07-13 |
1987-03-31 |
Eletro-Acustica S.A. |
Tweeter
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1985-09-02 |
1993-03-09 |
Franco Tontini |
Multiple loudspeaker
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1985-11-23 |
1987-06-04 |
Philips Patentverwaltung |
Vorrichtung zum einbau eines lautsprechers in einen ausschnitt einer schallwand
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1987-06-30 |
1989-01-17 |
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1989-08-01 |
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Speaker mounting system
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1989-05-23 |
1991-09-17 |
Kabushiki Kaisha Seidenko |
Speaker
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1989-09-02 |
1991-01-03 |
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1990-05-18 |
1992-10-06 |
Creative Acoustics, Inc. |
Speaker filtering circuit and support therefor
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1991-07-31 |
1991-10-17 |
Nokia Unterhaltungselektronik (Deutschland) GmbH, 7530 Pforzheim |
Konuslautsprecher
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1996-04-25 |
Koninkl Philips Electronics Nv |
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1993-08-05 |
1997-04-29 |
Bose Corporation |
Loudspeaker diaphragm attaching
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1993-11-09 |
1994-06-07 |
A - Sonic Electrics Co. Ltd. |
Speaker holder
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1994-06-23 |
1996-04-30 |
Fenton; Robert |
Composite speaker system having a directional adjustable tweeter
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1994-09-02 |
1995-08-01 |
Velodyne Acoustics, Inc. |
Loudspeaker
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1996-09-24 |
1998-04-14 |
Lin; Steff |
Speaker base for alternatively mounting different drivers
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1998-04-21 |
Wu Hai-Fu |
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Base for holding the tweeter of a speaker
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2000-01-18 |
2002-05-21 |
Jih Yo Electronic Co., Ltd. |
Speaker
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2000-01-19 |
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Syntronic Instruments, Inc. |
Loudspeaker
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2003-02-04 |
Atlas Sound, L.P. |
Modular horn loudspeaker
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Pivotable speaker mounting apparatus
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2003-11-11 |
Meiloon Industrial Co., Ltd. |
Loudspeaker with coaxial magnetic circuit for high-pitch sound and low-pitch sound
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2003-10-14 |
Jl Audio, Inc. |
Loudspeaker
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2004-01-06 |
2005-09-27 |
Phoenix Gold International, Inc. |
Speaker
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2004-03-25 |
2005-10-06 |
Pioneer Electronic Corp |
同軸スピーカー装置及びその製造方法
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2004-09-24 |
2006-10-10 |
Matsushita Electric Industrial Co., Ltd. |
Speaker for an automobile
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2006-05-30 |
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2007-03-08 |
Victor Co Of Japan Ltd |
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Pioneer Kabushiki Kaisha |
Loudspeaker
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2012-05-08 |
Sound Sources Technology, Inc. |
Single magnet coaxial loudspeaker
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Sony Corporation |
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鸿富锦精密工业（深圳）有限公司 |
具有音腔的扬声器
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2014-05-20 |
Yoon Tone |
Sound wave guide system for loudspeaker
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2015-02-24 |
Samsung Electronics Co., Ltd. |
Audio speaker
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2015-05-19 |
Harman International Industries, Inc. |
Multi-way coaxial loudspeaker with magnetic cylinder
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Bose Corporation |
Suspension for acoustic device
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