Image:Leonardo machine for grinding convex lenses.JPG

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[edit] Summary

Description	Leonardo da Vinci, design for a machine for grinding convex lenses
Source	Bortolon, The Life and Times of Leonardo, Paul Hamlyn
Date	late 15-early 16th century
Author	Leonardo da Vinci
Permission	PDArt

[edit] Licensing

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File links

• Leonardo da Vinci - scientist and inventor

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