a 9 year time period were inventors like Hippolyte Pixii, Joseph Henry, Thomas Davenport and Sir William Robert Grove created usfeul and relevant items like the dynamo, electrical relay, electric motor and the first fuel cell. (1 Jan 1832 Jahr – 1 Jan 1841 Jahr)

3 Mon. zuvor

1 Jan 1832 Jahr

1 Jan 1841 Jahr

~ 9 years

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