J. C. H. Ellehammer took out over 300 patents from beer vending machines
to boats with pneumatic engines.
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The company
he made is still in business and is making fire-fighting equipment
for use at tankers.
From 1906 to 1912 he built different kinds of aeroplanes, the
last one was a helicopter in 1912.
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J. C. H. Ellehammer was the first European man, who flew an aeroplane
the 12th of September 1906.