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topic
Machinery
3
Ore industry
2
Communication devices
1
Electric railroads
1
Military training
1
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collection
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"The Pageant of America" Collection
place
United States
5
Chicago (Ill.)
1
genre
Photographs
8
division
Wallach Division: Photography Collection
8
type
still image
8
Date Range
to
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automat
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Collection
: "The Pageant of America" Collection
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Date digitized
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Machine-Switching Apparatus,
Automatic
System.
Manufacturing Colt's
automatic
pistols
Car of 30-inch diameter
automatic
electric
…, Alabama.
Automatic
gun
…
automatic
rifles.
15 ton Hulett
automatic
ore unloaders
… is
automatically
shut off.
…
automatic
ore unloaders.