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Guangzhou Topping Electronics and Technology Co., Ltd.
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NANSHA DISTRICT, CN
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Patents Grants
last 30 patents
Patents Applications
last 30 patents
Information
Patent Application
Feedforward Amplifier Circuit, Audio Amplifier and Audio Playing De...
Publication number
20240235493
Publication date
Jul 11, 2024
GUANGZHOU TOPPING ELECTRONIC AND TECHNOLOGY CO., LTD.
Yueqiu HE
H03 - BASIC ELECTRONIC CIRCUITRY
Trademark
last 30 trademarks
Information
Trademark
88063416
Serial number
88063416
Registration number
5823200
Filing date
Aug 2, 2018
Guangzhou Topping Electronics and Technology Co., Ltd.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
86085842 - TOPPING
Serial number
86085842
Registration number
4578996
Filing date
Oct 8, 2013
Guangzhou Topping Electronics and Technology Co. Ltd.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments