EP 0136294 A4 19851001 - Perpetual Calendar.
Title (en)
Perpetual Calendar.
Title (de)
Dauerkalender.
Title (fr)
Calandrier perpétual.
Publication
Application
Priority
AU PF806383 A 19830216
Abstract (en)
[origin: WO8403384A1] A display device comprising a set of solids (71), each of which has a number of faces, indicia on each of the faces, the indicia being so selected as to permit a particular predetermined range of information to be displayed by the solids of the set, and means (70) whereby the solids (71) can be retained with one of the faces being visible. In a specific form the device is used as a calendar and the solids are cubes and the total of solids in the set are used to make the required display.
IPC 1-7
IPC 8 full level
G09B 1/16 (2006.01); A63H 33/06 (2006.01); G09D 3/02 (2006.01); G09F 7/14 (2006.01)
CPC (source: EP)
G09D 3/02 (2013.01)
Citation (search report)
- [X] FR 2419553 A1 19791005 - GRINBERG EDWARD [FR]
- [A] FR 1174184 A 19590306
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 8403384 A1 19840830; DE 3480884 D1 19900201; EP 0136294 A1 19850410; EP 0136294 A4 19851001; EP 0136294 B1 19891227; JP S60500685 A 19850509
DOCDB simple family (application)
AU 8400021 W 19840216; DE 3480884 T 19840216; EP 84900696 A 19840216; JP 50087584 A 19840216