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At what point can a patent lawsuit become reality?
Related to this question on 3D Systems patent expiry, it appears that 3D Systems are raising a patent infringement lawsuit on the basis that Kickstarter and Formlabs: knew or should have known ...
Nov 22 '12 at 0:49
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Simultaneous multiple layer curing in stereolithography
Jan 28, 1997
Apr 25, 1994
Oct 30, 1990
Charles W. Hull,
Chris R. Manners,
Dennis R. Smalley,
Stacie L. VanDorin,
Thomas J. Vorgitch
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