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6578
Date Created
Time PeriodThe Emergence of Modern America (1890-1930)
6579
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Time PeriodThe Emergence of Modern America (1890-1930)
6580
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Time PeriodThe Emergence of Modern America (1890-1930)
6581
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Time PeriodThe Emergence of Modern America (1890-1930)
6582
Date Created
Time PeriodThe Emergence of Modern America (1890-1930)
6583
Date Created1909
DescriptionThe Chronophone, Model D, consists essentially of two units, a patented projecting apparatus and the talking apparatus, connected by multiple cables to a patented synchronizer. The projecting...
Time PeriodThe Emergence of Modern America (1890-1930)
6584
Date Created
Time PeriodThe Emergence of Modern America (1890-1930)
6585
Date Created
Time PeriodThe Emergence of Modern America (1890-1930)
6586
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Time PeriodThe Emergence of Modern America (1890-1930)
6587
Date Created
Time PeriodThe Emergence of Modern America (1890-1930)