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[Microsoft][Patent] (lamlaw.com)
http://lamlaw.com/tiki-read_article.php?articleId=223
http://lamlaw.com/tiki-read_article.php?articleId=224
http://lamlaw.com/tiki-read_article.php?articleId=225
http://lamlaw.com/tiki-read_article.php?articleId=226
読むこと ← 自分。
(追記) いま 見たら、もう 1つ 記事が up されていた ...
http://lamlaw.com/tiki-read_article.php?articleId=227