U.S. federal trademark · Serial No. 77702786 · Reg. No. 3736231
educational services, namely, conducting seminars, workshops, research workshops and conventions in the field of speleology and the protection of caves and their contents; educational services, namely, providing incentives to others engaged in the study and science of speleology to demonstrate excellence in the field; publishing of books, magazines, journals, newsletters, periodicals, all featuring topics in the field of speleology
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