Hans Parrel was born in 1944.
Roger Parrel has written: 'Ouverture sur le monde'
Hans Öberg was born in 1926.
Hans Svaning was born in 1503.
Assuming parrel is an approximation to parallel, the answer is a parallelogram, and irregular vesions of pentagon, hexagon etc.
Hans Reiche was born in 1914.
Hans Lund was born on 1950-09-23.
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Hans Coper died in 1981.
Hans Eeckels was born on June 1, 1938, in Hasselt, Flanders, Belgium.
Hans Christian Heg was born on 1829-12-21.
Hans Wight was born on 1889-07-29.
Hans-Ulrich Schmied was born in 1948.