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Title: The electric light bulb - PowerPoint PPT Presentation
Description: The electric light bulb. Rubber Balloons. The Telephone. The zip. the lie detector (Polygraph) The sticky plaster. The ball point pen (Bic pen) The Microwave ... – PowerPoint PPT presentation
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PPT URL: http://www.youthideas.co.uk/yw/act/quiz/inventions/quiz-03.ppt
