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Inventions

Inventions
When were blue jeans invented?

1860s
1870s
1900s
1850s

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Inventions
What toy was invented by Joshua Lionel Cowen around 1900?

Yo-yo
Raggedy Ann doll
Tinkertoys
Electric train

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Inventions
Who invented Gunpowder?

Leo H Baekeland
Sir Frank Whittle
G. Ferdinand Von Zeppelin
Roger Bacon

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Inventions
It travels over land and water. Who invented the HOVERCRAFT?

S. Sperrow
C. Cockerell
T. Henman
O. Stricheg

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Inventions
What invention was first installed at a Hartford, Connecticut bank in 1889?

Burglar alarm
Time-lock safe
Pay telephone
Automatic teller machine

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Inventions
When was Milk Tray first introduced?

1934
1923
1942
1915

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