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American Inventors 1850-1899 Quiz Stats

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Score 0/25 Timer 07:00
0 Plays Today
% Correct
Telephone
85.7%
Electric lighting (light bulb)
85%
Sewing machine (practical foot-operated model)
84.4%
Safety razor
81.7%
Revolving machine gun
78.5%
Repeating rifle
75.5%
Camera, roll, film, Kodak camera
73.3%
Phonograph (cylinder)
73.2%
Safety elevator (with brake)
70.5%
Sleeping Car on a train
69.1%
Motion-picture projector
57%
Condensation of milk
56.2%
Cylinder lock
50.6%
% Correct
Fountain pen with capillary feed
36.5%
Electric voting machine
35.2%
Cigarette machine production
25.6%
Gasoline-powered automobile
24.7%
Barbed wire
23.1%
Halftone engraving (the 'optical V')
22.5%
Air brake
22.4%
Pony Express
22.2%
Modern oil well
18.2%
Typewriter (commercially successful model)
16.9%
Railway telegraph system
13.6%
Trans-Atlantic cable
12.9%

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