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Cylindrical slide rule (1 ene 1891 año – 14 h 49 m, 1 jul 2019 año)

Descripción:

Edwin Thacher introduced a cylindrical slide rule in the United States.

Añadido al timeline:

Counting/Caculating Inventions

4 nov 2019

0

0

360

fecha:

1 ene 1891 año

14 h 49 m, 1 jul 2019 año

~ 128 years

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