42 Designing of machines for the textile industry and their parts, accessories, machine elements or facilities composed of them; designing of textile machines and apparatus and their parts, accessories, machine elements or facilities composed of them; designing of loading-unloading machines and apparatus and their parts, accessories, machine elements or facilities composed of them; designing of conveying machines and their parts, accessories, machine elements or facilities composed of them; designing of robots for conveying yarns and their parts, accessories, machine elements or facilities composed of them; designing of machines for the textile industry, namely, designing of robots for threading yarn on textile machines and their parts, accessories, machine elements or facilities composed of them; technological advice relating to machines for the textile industry; technological advice relating to textile machines and apparatus; technological advice relating to loading-unloading machines and apparatus; technological advice relating to conveying machines; technological advice relating to robots for conveying yarns; technological advice relating to machines for the textile industry, namely, technological advice relating to robots for threading yarn on textile machines; computer software design, computer programming, and maintenance of computer software