About 1 Trademarks found that are owned by Liangchangsheng

Microphones; Adjustable smartphone and PC tablet stabilizers and mounts; Cases for mobile phones; Electronic sensors for measuring solar radiation; High definition multimedia interface cables; Loudspeakers, headphones, microphones and CD players; Personal computers; Public address (PA) and sound system accessories, namely, microphone stands, speaker stands, microphone cables, speaker cables, speaker boxes and sound mixers; Sound boards; Soundbar speakers; USB cables