Oskar Bider (12 July 1891 in Langenbruck – 7 July 1919 in Dübendorf) was a Swiss aviation pioneer. == Early life == Oskar Bider grew up in Langenbruck (canton of Basel-Land) and graduated from the primary school to the district school in Waldenburg.
Oskar Bider (12 July 1891 in Langenbruck – 7 July 1919 in Dübendorf) was a Swiss aviation pioneer. == Early life == Oskar Bider grew up in Langenbruck (canton of Basel-Land) and graduated from the primary school to the district school in Waldenburg.
Source: Wikipedia "Oskar Bider" · CC BY-SA 4.0
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