Science · Inventions and Discoveries
हैंडहेल्ड मोबाइल फोन के आविष्कार का श्रेय किसे दिया जाता है?
- 1थॉमस एडिसन
- 2जॉन लोगी बेयर्ड
- 3अलेक्जेंडर ग्राहम बेल
- 4मार्टिन कूपर✓
सही उत्तर देखें
मार्टिन कूपर
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