http://www.w3.org/ns/prov#value | - and copiers today, though never incorporating the Klein patents, which have changed hands several times but never been employed in a manufacturing setting; at least arguably, the technological innovation was developed prior to Klein by Ricoh.)[71] Rather than suing scanner and printer manufacturers, such as Hewlett-Packard and Xerox, attorneys working with MPHJ mailed demand letters from 40 affili
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