Chang, Jeng-Chung Trademarks
MARTIN ROLAND
Professional Karaoke Mixer, Professional Karaoke Amplifier and Professional Karaoke Speaker; Professional Karaoke Mixer,…
Owned by: Chang, Jeng-Chung
Serial Number: 78322567
CALIFONRIA LABS PROFESSIONAL AUDIO USA
Electronic audio and/or audio-visual stereo processor apparatus for use in car and/or at home; professional and amateur…
Owned by: Chang, Jeng-Chung
Serial Number: 78325161
VOLCANO CAR AUDIO SYSTEM
electronic audio and/or audio-visual stereo processor apparatus for use in car and/or at home; Professional and amateur…
Owned by: Chang, Jeng-Chung
Serial Number: 78325166
