LANGMAI (U.S. Trademark Serial Number 87254470) is a United States trademark of Shenzhen KaiJingDa Technology Co., Ltd.. The goods and services include: Audio speakers; Cabinets for loudspeakers; Data processing apparatus; Earphones; Electric wires and cables; Electrical pickups for use with musical instruments; Headphones; Headsets for mobile telephones; Headsets for use with computers; Horns for loudspeakers;…
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