[COFF] Happy birthday, computer mouse!

[Dave Horsfall]

On Fri, 16 Nov 2018, Nemo wrote:

>> On this day in 1970 computer pioneer Douglas Engelbart was awarded the 
>> patent for the computer mouse.
>
> Not really meaning to argue but

Don't worry; I love receiving corrections.

> http://www.dougengelbart.org/content/view/90/48/ claims: "Doug 
> Engelbart's patent on the computer mouse, titled X-Y position indicator 
> for a display system (3,541,541), filed June 21, 1967 and granted 
> January 17, 1970 [...]".  Link to the USPTO: 
> http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=03541541

Hmmm...  Right date, but wrong month; thanks.  Not sure how that happened, 
but now corrected.

-- Dave