| http://www.w3.org/ns/prov#value | - Patent US6609107 - Duty-free article shopping mall operating method on computer network and ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsA method and system for operating a duty-free article shopping mall provides only a user whose exit and/or entry is confirmed with services such as order, payment and delivery of duty-free article
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