EP 0236707 A3 19880113 - TAMPER-RESISTANT CHANGEABLE SIGN
Title (en)
TAMPER-RESISTANT CHANGEABLE SIGN
Publication
Application
Priority
US 83122286 A 19860219
Abstract (en)
[origin: EP0236707A2] A tamper-resistant sign comprising a holder (l0) having a front wall (ll) spaced from a rear wall (l2) to define a sign chamber (l7) between the walls, and a sign panel (30) inserted in the sign chamber (l7). The sign panel (30) includes a retaining element (32) extending therefrom and a wall (l2) of the holder includes a recess (l8). The retaining element (32) and the recess (l8) are positioned in their respective elements so as to be aligned with one another when the sign panel (30) is fully inserted in the sign chamber (l7); the retaining element (32) is then received in the recess (l8) to restrict unauthorized removal of the sign panel (30) from the holder (l0).
IPC 1-7
IPC 8 full level
G09F 15/00 (2006.01); G09F 7/02 (2006.01); G09F 7/10 (2006.01)
CPC (source: EP)
G09F 7/10 (2013.01)
Citation (search report)
- [A] US 3538631 A 19701110 - BOATNER EDWARD HAMMOND
- [A] CH 349152 A 19600930 - DISPLAY ELECTRICS LIMITED [GB]
- [A] GB 1587185 A 19810401 - WARD DISPLAY BRISTOL LTD
- [A] DE 1243001 B 19670622 - TELEFUNKEN PATENT
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0236707 A2 19870916; EP 0236707 A3 19880113; JP S62194277 A 19870826
DOCDB simple family (application)
EP 87100913 A 19870123; JP 3360787 A 19870218