Is it legal to use Lingoes Dictionary?

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Is it legal to use Lingoes dictionary (http://ift.tt/R7jbaD)? I am asking so because dictionaries catalogued in lingoes are commercial (e.g. Longman, Macmillan, Meriam-Webster, Collins etc.) and to quote the Wikipedia article “The use of dictionary brand names like Oxford’s, Longman’s, Cambridge’s, Merriam-Webster’s, Collin’s and others without any reference in Lingoes’ website to the legitimacy of this use is suspicious of an illegal act.”

Thanks

Prabhu

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