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Inventions - 4

Ball point pen
John J Loud
Car (petrol)
Karl Benz
Crossword Puzzle
Arther Wynne
Helicopter
Etienne Oehmichen
Loudspeaker
Horace short
Safety Pin
Walter Hunt
Telescope
Hans Lippershey
Velcro
Georges de Mestral
Yo Yo
Donald F Duncan
Zip Fastener
W L Judosn

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