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Def Con Communications, Inc.
Suite 406,
2606 2nd Avenue
Seattle WA 98121-1212 (US)

Alexander J.A. Garcia,
Holland & Hart LLP
Attn: Trademark Docketing,
P.O. Box 8749
Denver CO 80201-8749 (US)

Англ.Educational seminars, classes, speaker series, conferences and training in the fields of computer and network security, information security, data and telephony network security, Internet security, computer and network technology, computer and network hardware, and computer and network software; training in the use and operation of computers and computer software; and computer and computer software education training.