हेलीकॉप्टर का आविष्कार किसने किया था

Helicopter Ka Avishkaar Kisne Kiya Tha

Pradeep Chawla on 12-05-2019

Igor Sikorsky

Paul Cornu


Comments jitendra singh on 12-05-2019

Ek helicopter start hone mai kitna indhan khapat karta hai

Shweta on 12-05-2019

Igor sikorsky and paul cornu in hindi

Halicoptor ka aaviskar kisne kiya on 12-05-2019

Halicoptor ka aaviskar kisne kiya

Helicopter ka avickar kisne kiya on 12-05-2019

Harbo

DEVKARAN SHORI on 26-10-2018

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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