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LIST OF U.S. AND INTERNATIONAL PATENTS UNITED STATES 6,109,819 6,588,971 6,991,397B2 CANADA 2,280,528 2,384,061 EUROPEAN 1,291,533 4394065.9 - PENDING CHINA 306,589 483,754 AUSTRIA E353120 GERMANY 60217948.3 TURKEY TR200701854T4 ITALY 24365BE/2007 OTHER U.S. AND FOREIGN PATENTS HAVE BEEN APPLIED FOR OR ARE PENDING.
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