File:Zeichenmaschine.jpg

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Summary

Description

English: historic drafting board with double parallelogram linkages and balancing mass

Deutsch: Historische Zeichenmaschine mit doppeltem Parallelogrammgestänge und Ausgleichsgewicht

Source

Own work

Author

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	This licensing tag was added to this file as part of the GFDL licensing update.CC BY-SA 3.0truetrue