A portion of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyrights whatsoever.
The broken line showings throughout the views are for illustrative purpose only and form no part of the claimed design. The broken lines, which define the bounds of the claimed design, form no part thereof.