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Old 04-14-2013, 08:58 PM
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Join Date: Jul 2004
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1934 World's Fair TV principles exhibit

Description of exhibit 8-N in the Hall of Science at the 1934 World's Fair in Chicago. Demonstrating first the scanning disk optics, then inserting the photo-electric apparatus, according to this description. Constructed by "M.L. Hayes"
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File Type: pdf 1934 WF TV exhibit.pdf (342.7 KB, 42 views)
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