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Reading the section "History of the PTC Site", it appears to have been copied verbatim from another source. I say this because it makes reference to a "following" list of companies who use the site, and "Figures 1 through 5." Neither of these exist on this page, and looking at the history I don't think they ever did. — Preceding unsigned comment added by 205.141.129.211 (talk) 13:34, 5 June 2012 (UTC)[reply]
