On Oct 8, 2018, at 11:34 AM, Gerardo @neorigami.com <gera...@neorigami.com> 
> I'm interested in using the twist fold in a commercial setting. I'm
> referring to this: http://www.cutoutfoldup.com/1604-square-twist.php
> Do I need to obtain authorization for that? If so, who must I ask for it?

Hi Gerardo,
I’m guessing that it’s considered a basic origami molecule, as it appears in 
many different origami models in one form or another, from roses and 
tessellations to the center of stars made from bird bases.
In other words, I don’t think you need to ask anyone’s authorization, although 
I may be wrong of course.

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