General Knowledge · Inventions and Discoveries
निम्नलिखित में से किस मशीन का आविष्कार आइजैक सिंगर द्वारा किया गया था?
- 1द्विफोकसी लेंस (बाइफोकल लेंस)
- 2साइकिळ
- 3मोबाइल फोन
- 4सिलाई मशीन✓
सही उत्तर देखें
सिलाई मशीन
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for General Knowledge?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Inventions and Discoveries?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in General Knowledge · Inventions and Discoveries