Famous Inventions Part-4
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Famous Inventions Part-4


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Q.1 : Who invented Tape Recorder?
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Q.2 : Who invented Submarine?
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Q.3 : Who invented Stainless Steel?
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Q.4 : Who invented Chloroform as Anaesthetic?
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Q.5 : Who invented Neutron?
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Q.6 : Who invented Periodic Table?
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Q.7 : Who invented Photocopier?
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Q.8 : Who invented Printing Press?
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Q.9 : Who invented Safety Pin?
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Q.10 : Who invented Seat Belt?
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