A portion of the disclosure of this patent document contains material which is subject to copyright and/or trademark protection. This patent document may show and/or describe matter which is or may become trade dress of Unger Marketing International. The copyright and trade dress owner has no objection to the facsimile reproduction by anyone of the patent disclosure as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyright and trade dress rights whatsoever.
The broken lines in the drawings illustrating environmental structure or boundaries that form no part of the claimed design.