Fritz Hans Schweingruber
Fritz Hans Schweingruber
Fritz Hans Schweingruber was a Swiss dendrochronologist and emeritus professor.
From *.wikipedia.org,
General Info
.
Male
Date of Birth
February 29th, 1936
Age
90
Birth Place
Switzerland, canton of Bern
Date of Death
January 7th, 2020
Died Aged
83
Star Sign
Pisces
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