Calling all small keyboards

[John Watlington]

We are looking for examples of keyboards for small children
present before 1993.

Specifically, we are looking for keyboards whose key-key spacing
is between 10.8 and 16.4 mm horizontally, and 10.8 to 18.0 mm
vertically, and with a stroke distance of 0.9 to 6mm.

Thanks for your memories,
wad

http://www.google.com/patents?vid=USPAT7354209
http://www.google.com/patents?vid=USPAT7101101
http://www.google.com/patents?vid=USPAT5531529