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April 1, 2024
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12 gen 1986 anni - First patent by Charles W. Hull for Sterolithography
Descrizione:
Charles W. Hull was interested in the area so he decided to file a patent.
Aggiunto al nastro di tempo:
8 ott 2017
0
0
676
3d printing history
Data:
12 gen 1986 anni
Adesso
~ 38 years ago