| http://www.w3.org/ns/prov#value | - ry rolesUS20140214646 *25 nov. 201331 juil. 2014Bgc Partners, Inc.Trading at a price within a spread marketDE19946876A1 *30 sept. 199910 mai 2001Guenter PootBilateral buyer-led transaction apparatus for sale and purchase of goods and services e.g. via internet has checking mechanism which makes purchase requests globally available to possible vendorsEP0453150A2 *8 avr. 199123 oct. 1991Commodity Ex
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