Weird Patent of the Day
Stretch wig and cap construction therefor
A wig including a cap made of sections interwoven from strands of elastic material, so knit as to provide various degrees of tightness according to the functions the sections will perform when the cap is worn on the head.
Source: United States Patent and Trademark Office, www.uspto.gov. Official PDF: USPTO patent PDF. Also at Google Patents. The drawing on this page is a reduced copy of the official figure; see the original drawing.