Weird Patent of the Day
Portable baby cage
A housing or cage in which a baby or young child, together with playthings, can be placed so that children being raised in large apartments can obtain proper fresh air as well as being outdoors for such air and exercise.
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.
