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12 janv. 1986 - First patent by Charles W. Hull for Sterolithography

Description:

Charles W. Hull was interested in the area so he decided to file a patent.

Ajouté au bande de temps:

3d printing history

ByBatman Hook
8 oct. 2017

Date:

12 janv. 1986
Maintenaint
~ Il y a 38 ans
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