View Larger Image A few years ago, the expiration of many key 3D printing patents had the 3D printing community abuzz.The 3D printing patents that expired in the 2013-15 timeframe are described here.At that time, many articles challenged the conventional wisdom that intellectual property drives innovation by creating competition, since the existence of IP forces […]
from The 3d printers source http://ift.tt/2dGHGax
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