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Crystal Palace
A glass conservatory in London, the Great Exhibition -
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Repeating Rifle
B. Tyler Henry, chief designer for Oliver Fisher Winchester's arms company -
Roller Skates
First 4-Wheel roller skates. -
Oil Pipeline
Pithole, Pennsylvania, Samuel van Syckel's five-mile -
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Typewriter
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Phonograph
Used to play "Mary had a little lamb its fleece was white as snow." -
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Hearing Aid
The Ear Trumpet -
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Escalator
Jesse W. Reno, a conveyor belt used for passengers. -
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