EP 0264549 A3 19890719 - PERPETUAL BLIND CALENDARS
Title (en)
PERPETUAL BLIND CALENDARS
Publication
Application
Priority
CA 521183 A 19861023
Abstract (en)
[origin: EP0264549A2] The present invention deals with perpetual wall, desk and pocket calendars and combined calendars using an assembly of weekdays unit and monthly unit or units set in parallel or concentric relation with each other, fastened in between guides on a baseboard, suspended on transparent films in a venetian blind pattern, strapped around transparent concentric drums, packed in a slide rule pattern or as concentric rings/discs rotating around a central pin, with solid or flexible cursors to identify the current day and its date and large displays of the current day and date by means of One Letter Alphabet (OLA) common variable symbols and coloured, luminous or physical display means that could be visually read at large distance and could be read by the blind through touching process.
IPC 1-7
IPC 8 full level
G09F 3/04 (2006.01); B43L 13/20 (2006.01); G09D 3/10 (2006.01); G09F 7/14 (2006.01); G09F 9/302 (2006.01)
CPC (source: EP)
B43L 13/208 (2013.01); G09D 3/10 (2013.01); G09F 7/14 (2013.01); G09F 9/302 (2013.01)
Citation (search report)
- [X] US 4285147 A 19810825 - KOLAR KAREL
- [A] FR 2467452 A1 19810417 - GUYOT MARTIN [FR]
- [A] FR 2494468 A1 19820521 - GARCIA JEAN LUC [FR]
- [A] US 2786291 A 19570326
- [A] FR 1244258 A 19601021
Designated contracting state (EPC)
DE ES FR GB GR IT NL SE
DOCDB simple family (publication)
EP 0264549 A2 19880427; EP 0264549 A3 19890719; BR 8705250 A 19880524; CA 1233447 A 19880301; CN 87105284 A 19880504; IL 83441 A0 19880131; JP S63186287 A 19880801
DOCDB simple family (application)
EP 87110761 A 19870724; BR 8705250 A 19871002; CA 521183 A 19861023; CN 87105284 A 19870729; IL 8344187 A 19870805; JP 26292887 A 19871020