Oppo patents "Screen Sound Producing Technology" – Ex

Oppo patents "Screen Sound Producing Technology" – External speakers being removed

Oppo patents "Screen Sound Producing Technology" – External speakers being removed

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China , Chinese , , Oppo Inc , Chinese Patent Office , Screen Sound Producing Technology , China Patent Office , Sound Producing , Image Credits , Patented Screen Sounding Electronic Device , சீனா , சீன , சீன காப்புரிமை அலுவலகம் , சீனா காப்புரிமை அலுவலகம் , படம் வரவு ,