Round hp invent calculator


I have a round calculator the size of a CD about an inch thick and has a padded top, with sqrt, percent and memory keys. The lid swings to the side and the base allows the calc to spin in random circles. Lid marked hp Invent and base has china sticker. Anyone know what the promotion was? I assume its a promotional item.



Hmm, I've never heard of or seen such a calculator from HP. Do you have a picture of it?


I can email a photo if I have your address.


My email is:

r s 1 n


h o t m a i l



Would you care at all if I posted the photo for others to see?



Do you have any idea of the purpose of the padded lid or the swivel base?


send photos to




dot net

It sounds like a promotional hand-out.

Possibly Related Threads...
Thread Author Replies Views Last Post
  Vintage logarithm round up McAllan 9 1,849 03-18-2012, 11:17 AM
Last Post: Dieter
  HP15C LE Keyboard Survey Take 3 (last round) M. Joury 33 5,470 09-28-2011, 02:28 PM
Last Post: Michael de Estrada
  HP 34C - which way round are the batterys fitted? Jon Duke 6 1,528 03-30-2010, 11:39 AM
Last Post: Michael de Estrada
  Square or Round decimal point on the 50g Timespace 4 996 09-08-2006, 04:49 AM
Last Post: Antonio Maschio (Italy)
  HP-86/87 Service ROMs - whip round request John 1 616 04-12-2006, 10:22 PM
Last Post: Howard Owen
  Round off (beautiful...) Tizedes Csaba 1 617 08-13-2003, 03:28 PM
Last Post: hugh

Forum Jump: