Nomenclature Clipart:


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Quintenzirkel

by Manuela.
2016-12-07

Quintenzirkel 1405

 
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1
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Greek 12-wind compass rose

by Magirly
2015-04-06

Greek 12-wind compass rose 1941

 
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4
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IUPAC logo

by Tibetan_Fox
2014-03-07

IUPAC logo 2148

 
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2