Wednesday, December 25, 2019

The scientific tool which throws the simple sound very far in loud sound is a loudspeaker. Who got the first priority of the inventor of this tool?


The scientific tool which throws the simple sound very far in loud sound is a loudspeaker. Who got the first priority of the inventor of this tool? (सामान्य किसिमले बोलेको आवाजलाई टाढाटाढासम्म सुन्ने गरी ठूलो आवाजमा शब्द फुक्ने गरी यन्त्र लाउडस्पिकर हो भने अब भन्नुहोस् यो यन्त्र निर्माणको प्याटेण्ट प्राप्त गर्ने पहिलो व्यक्ति को हुन्?)
Thomos Alba Adition

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