In his taxononomy of cube items (<880603095608.2080015B041@ardec-lcss.arpa>) 
Pete Beck (pbeck@ardec.arpa) wrote:

TAXONOMY for RUBIK'S CUBE ITEMS (5/26/88 REV)

  0.  CUBE PATENTS
  0.1  US PATENT#3,081,089,  william Gustafson, 1958
  0.2  Frank Fox, 1970
  0.3  US PATENT#  , LARRY Nichols, 1972  
  0.4  HUGARIAN PATENT, ERNO RUBIK, 1975
  0.5  JAPANESE PATENT,  Terutoshi Ishige, 1976
...

I only knew about 0.4 (of course) and 0.5 (mentioned for instance in
Singmaster's Notes). Could anyone inform me about 0.1, 0.2, and 0.3 please.
Are they the normal 3x3x3-cube, or not?
--
Quote: "Life is but a ramble! Let flipism chart your ramble!"
Per Starback starback@kuling.UU.SE
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