Question
लाउड स्पीकर का आविष्कार कब हुआ था?
Answer
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Hinglish Excerpt
Loud Speaker ka Avishkaar kab hua tha?
Tags: आविष्कारलाउड स्पीकर
Subjects: General KnowledgeCurrent AffairsTraditional General Knowledge
Exams: UPSCUPPCSSSCRRBIBPSSBIRBICTETAFCATUGC NETDefence/PoliceUPPCLCourt/LegalOthers
