The birth of SOMA ?

When WAS the birth of SOMA ???:

The official story tells us that:
"The Danish Author Piet Hein conceived the idea of the SOMA cube in 1936, during a lecture of Quantum physics by Werner Heisenberg (Father of the un-certain principle).
When the lecture entered the subject: A room divided by cubes. Piet Heins easily movable imagination grasped, in a lightening flash this unusual geometric theory.
....Piet Hein convinced himself quickly, that seven shapes, ... would let itself be combined to a larger cube of the dimensions 3 x 3 x 3. ....Piet Hein called his set of figures SOMA."


BUT:

Ole Poul Pedersen, has been digging in the history, since he bought an old version of the SOMA cube
(See Ole Poul's newsletter at News letter 05,03,2003 The oldest SOMA ?

The box reads the following  Danish  English Distribuering ERIK WILLUMSEN København C9230 WORLD COPYRIGHT Distribution ERIK WILLUMSEN Copenhagen C9230 WORLD COPYRIGHT SOMA ENG.P. 420349 KR 1,50 D.R.G.M 1321938 Dansk Patent Anmeldt SOMA ENG.P. 420349 KR 1,50 D.R.G.M 1321938 Danish Patent Pending

Now this of course raises the question:-
Did Werner Heisenberg give his lecture in 1934, or in 1936 ??
Or did Piet Hein invent the puzzle in 1933, and then apply for patent in 1934 ??
Can YOU shed some light on this matter, then please mail to me at <thorleif@fam-bundgaard.dk>

Feb. 2010 Addition: It seems that the story might be almost right after all, just happening 3 years earlier. The lecture held by Werner Heisenberg actually took place on december 11. 1933. Mr. Heisenberg had received the Nobel Prize in Physics in 1932, and responded by a lecture titled "The development of quantum mechanics" Here (It's copyrighted, but page one is shown here) Assuming Piet Hein attended this lecture - which is very likely, given Piet Heins interest in this field. Then it almost fit the Danish patent application dated Dec. 2 1933 But still - the mystery continues, because. How can Piet Hein apply for a SOMA patent 9 days before hearing the referred lecture by Werner Heisenberg.?? We may never know.? /Thorleif

As the patent application was given in december 1933.
Was SOMA then really created during a lecture by Heisenberg.?
When did Heisenberg actually give his lecture.?