डिक्टाफ़ोन
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thumb|diktafon diktafon (aangrezi:Dictaphone) ek vaijnanik upakaran hai. isaka upayog apani bat tatha adesh doosare vyakti ko sunane ke lie rikod kiya jata hai. yah prayah dafataroan mean prayog kiya jata hai.
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