General Knowledge · Inventions
अल्फ्रेड नोबेल द्वारा डायनामाइट के पेटेंट से कौन सा देश और वर्ष ऐतिहासिक रूप से जुड़े हुए हैं?
- 1यूएसए, 1880
- 2इंग्लैंड, 1855
- 3जर्मनी, 1871
- 4स्वीडन, 1867✓
सही उत्तर देखें
स्वीडन, 1867
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