Necessity is the mother of invention. The father is unknown.
The following patent was issued by the US Patent and Trademark Office on December 30, 1969.

patent#: US view the full patent  |  comments (1) posted on , patent issued on 12/30/1969 1311-2

Comments on

james | Dec 3, 2007 3:03 AM
I saw your page at http://www.patentlysilly.com/patent.php?patID=6796467

and was wondering if you have seen http://www.FreePatentsOnline.com ? This site allows free patent searching, PDF downloading, annoting documents and sharing them between users, free alerts, and more. I thought the link might be a good resource to add to your site.

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