Direct link to the full article, rather than the blogspam one DIMEN SIONEXT  posted.

3D Printing
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1

Direct link to the full article, rather than the blogspam one @DIMEN_SIONEXT posted.
http://www.publicknowledge.org/Copyright-3DPrinting

2

Note that this white paper is Specufic to the laws and rules in the US. Other jurisdictions might have different rules.