CA2204004A1
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1996-05-09
Global sound microphone system
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2001-02-07
Speech and sound synthesizing
AU6354998A
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1998-10-29
Acoustical ring and bell sound system
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1997-03-11
Modified structure of microphone sound head positioning seat
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2000-09-11
Structure of microphone sound head
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1997-09-01
Improved structure of microphone voice head
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1997-02-11
Assembly structure of microphone head
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1997-08-21
One-piece assembly structure of microphone audio head
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1997-11-11
Improved structure of voice head in microphone
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1997-05-11
Improved structure of speaker
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2000-05-21
Improved structure of fastening seat for microphone head
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1997-07-11
Structure of hidden microphone for goggle
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1997-09-11
Improved base seat of sound box
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2000-05-21
Improved structure of acoustic basin for speaker
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1997-03-01
Improved structure of sounder head in speaker
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2000-05-21
Structure of microphone recording
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1998-01-21
Structure of easy assembled two-stage shower head
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1998-11-21
Improved structure for connection of microphone
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2000-02-21
Improvement on the structure body of microphone head
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1997-05-11
Improved structure of head-wearing-type microphone
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(en )
1997-05-11
Improved structure of body of speaker
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2001-09-01
Improved microphone head structure capable of enhancing sound receiving effect
TW390569U
(en )
2000-05-11
Structure of divergent sound pipe sleeve for loudspeaker with high acoustic quality
IL116358A0
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1996-03-31
Audio improvement by means of acoustic seats
TW357952U
(en )
1999-05-01
Improvement of microphone structure