http://ohgizmo.disqus.com/enSat, 12 Jun 2010 07:21:30 -0000http://www.ohgizmo.com/2008/01/01/air-shadow-ceiling-fan-with-retractable-blades/#comment-56366100<p>Oh!...that's great helpful, it's so right to me! Million thanks for the article,<br></p>Hunter Outdoor FansSat, 12 Jun 2010 07:21:30 -0000http://www.ohgizmo.com/2008/01/01/air-shadow-ceiling-fan-with-retractable-blades/#comment-1765082<p>Yes, it is pretty mechanical, considering it is a direct copy of a 1923 patent.<br>An advanced retracting blade ceiling fan with increased airflow is coming.<br>Keep a look out.</p>John SampsonWed, 09 Jan 2008 07:20:34 -0000