Engelbert Pigal
Engelbert Pigal (1899? – 24 April 1978) was an Austrian engineer.
Engelbert Pigal (1899? – 24 April 1978) was an Austrian engineer.
Engelbert Pigal (1899? – 24 April 1978) was an Austrian engineer.
Source: Wikipedia "Engelbert Pigal" · CC BY-SA 4.0
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