Helicopter Ka Avishkaar Kisne Kiya Tha हेलीकॉप्टर का आविष्कार किसने किया था
हेलीकॉप्टर का आविष्कार किसने किया था
Igor Sikorsky
Paul Cornu
Comments jitendra singh on 12-05-2019 Shweta on 12-05-2019
Igor sikorsky and paul cornu in hindi
Halicoptor ka aaviskar kisne kiya
Helicopter ka avickar kisne kiya on 12-05-2019
Harbo
Bahuth achi hain computer Ghar baidhe sab kuch kar sakte hain Ek computer so log ka kam kartha hain mindho me
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Ek helicopter start hone mai kitna indhan khapat karta hai