मोबाइल टेलीफोनी की परिकल्� – McqOptions

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1.	मोबाइल टेलीफोनी की परिकल्पना सव॔प्रथम किस दशक मे विकसित की गई ?
A.	1960
B.	1970
C.	1980
D.	1990
Answer» C. 1980

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