请教一个句子,我彻底看晕了

Essential GSM Intellectual Property shall mean the Intellectual Property Rights/Patents, that, as of the time of GSM standardization  pursuant to European Telecommunications Standards Institute are listed, declared or considered as essential Intellectual Property Rights/Patents for any GSM based standard, and it is nor possible to make, have made, sell, offer for sale, lease, import, export,therwise dispose of, repair, use or operate products, equipment or methods which comply with such GSM based stadard without infringing such essential Intellectual Property Rights/Patents

哪位高手能帮忙简单翻译一下么? 我彻底看晕了