When was helicopter developed?
A. 1935
B. 1939
C. 1852
D. 1923
Submitted by: Nasir Iqbal
The post When was helicopter developed? appeared first on PakMcqs.
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A. 1935
B. 1939
C. 1852
D. 1923
Submitted by: Nasir Iqbal
The post When was helicopter developed? appeared first on PakMcqs.
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