EFF继续为3D打印技术发展 努力清除专利限制
CALL FOR PRIOR ART: 3D Printing application “Additive Manufacturing System and Method for Printing Customized Chocolate Confections” (13/432424): http://patents.stackexchange.com/q/3493/3363
CALL FOR PRIOR ART: 3D Printing application “Ribbon Filament and Assembly for Use in Extrusion-based Digital Manufacturing Systems” (13/530191): http://patents.stackexchange.com/q/3495/3363
更多详细信息请移步至：https://www.eff.org/deeplinks
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