Science · Inventions and Discoveries
पहले घरेलू इलेक्ट्रिक रेफ्रिजरेटर (फ्रिज) का आविष्कार किसने किया था?
- 1इगोर सिकोर्सकी
- 2स्वांत पाबो
- 3क्रिस्टोफर कॉकरेल
- 4फ्रेड डब्ल्यू. वोल्फ✓
सही उत्तर देखें
फ्रेड डब्ल्यू. वोल्फ
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