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23 St. 50 Min, 31 Dez 1859 Jahr - Telegraphic Optical Systems (use of flags, or traffic lights)

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jose luis herrera lozada

ByLuis Edko Herr

11 Okt 2017

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447

Datum:

23 St. 50 Min, 31 Dez 1859 Jahr

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~ 165 years ago

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