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रिकार्ड (लांगप्लेइंग) के आविष्कारक डॉ. पीटर गोल्डमार्क थे।
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Hinglish Excerpt
Record (longplaying) ke Avishkarak Dr. Peter Goldmark the.
Tags: आविष्कारकडॉ. पीटर गोल्डमार्करिकार्ड (लांगप्लेइंग)
Subjects: Current AffairsGeneral KnowledgeTraditional General Knowledge
Exams: UPSCUPPCSSSCRRBIBPSSBIRBICTETAFCATUGC NETDefence/PoliceUPPCLCourt/LegalOthers
