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13 Mai 1905 Jahr - Stereoscope

Beschreibung:

Stereoscopes reinforced topics by showing students images in 3-D.

Zugefügt zum Band der Zeit:

Educational Technology

ByDayanira Feliciano

14 Nov 2017

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0

494

Datum:

13 Mai 1905 Jahr

Jetzt

~ 120 years ago

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