Who invented Airship (rigid)?
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This English inventor is known as the 'Father of Computing.
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When was the game Frisbee invented?
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When were bar code scanners invented?
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What Karl Benz invented?
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Who invented Bifocal Lens?
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What invention was first installed at a Hartford, Connecticut bank in 1889?
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What Henry Bessemer invented?
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What Igor Sikorsky invented?
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In which decade was the transistor invented?
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What device for new parents did Ann Moore invent in 1969?
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Who invented Electric Generator?
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When were blue jeans invented?
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