3D printers; additive construction and additive manufacturing machines and robots; robotic construction equipment, namely additive construction and additive manufacturing machines and robots for constructing buildings, structures, and infrastructure; robotic 3D printing and additive construction and additive manufacturing machines; mixing, storage, and pumping equipment, namely, mixing, storage, and pumping equipment in the nature of mixers, portable and non-portable containers, and pumps for 3D printers and additive construction and additive manufacturing machines; additive construction, additive manufacturing, and 3D printing machines and component parts thereof; additive construction, additive manufacturing, and 3D printing machines, namely, 3D printers for the construction of buildings, structures, and infrastructure; machines for mixing, agitating, pumping, storing, extruding, and printing of materials for additive construction, additive manufacturing and 3D printing