EP 0144633 B1 19910313 - PICTURE PUZZLE APPARATUS WITH A HIDDEN FIGURE
Title (en)
PICTURE PUZZLE APPARATUS WITH A HIDDEN FIGURE
Publication
Application
Priority
DE 3340015 A 19831104
Abstract (en)
[origin: EP0144633A2] In a three-dimensional picture puzzle, code bits are arranged distributed on an object in all three spatial planes. The code information being sought in the form of a two-dimensional picture is revealed only when the three-dimensional object is viewed from a specific line of sight. The spatially arranged code bits then lose their depth effect and unite to form a two-dimensional picture. <IMAGE>
IPC 1-7
IPC 8 full level
A63F 9/06 (2006.01); A63F 9/12 (2006.01); B44F 1/10 (2006.01); B44F 1/12 (2006.01); G09F 3/00 (2006.01); G09F 19/00 (2006.01)
CPC (source: EP)
A63F 9/0613 (2013.01); A63F 9/12 (2013.01); G09F 19/00 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0144633 A2 19850619; EP 0144633 A3 19880727; EP 0144633 B1 19910313; AT E61682 T1 19910315; DE 3340015 A1 19850523; DE 3340015 C2 19860306; DE 3484267 D1 19910418; JP S60122200 A 19850629
DOCDB simple family (application)
EP 84112293 A 19841012; AT 84112293 T 19841012; DE 3340015 A 19831104; DE 3484267 T 19841012; JP 23303584 A 19841105