EP 0733316 B1 20000802 - Coins and methods for producing coins
Title (en)
Coins and methods for producing coins
Title (de)
Münze und Verfahren zu ihrer Herstellung
Title (fr)
Pièces de monnaie et leurs procédés de fabrication
Publication
Application
Priority
GB 9505920 A 19950323
Abstract (en)
[origin: EP0733316A2] A coin comprises a substrate 20 having one or more coating layers 22,24 of a material or materials different from the substrate 20: a pattern or design is formed using a high power laser to cause localised melting and mixing or alloying of the coating layer and substrate, or of the superposed coating layers. This provides an observable or measurable effect, for establishing the authenticity of the coin. <IMAGE>
IPC 1-7
IPC 8 full level
A44C 21/00 (2006.01)
CPC (source: EP)
A44C 21/00 (2013.01)
Designated contracting state (EPC)
AT BE DE DK ES FI FR GB IT SE
DOCDB simple family (publication)
EP 0733316 A2 19960925; EP 0733316 A3 19980408; EP 0733316 B1 20000802; AT E195059 T1 20000815; CA 2172169 A1 19960924; DE 69609544 D1 20000907; DE 69609544 T2 20001214; DK 0733316 T3 20001227; ES 2150635 T3 20001201; GB 9505920 D0 19950510; ZA 962297 B 19960930
DOCDB simple family (application)
EP 96302032 A 19960325; AT 96302032 T 19960325; CA 2172169 A 19960320; DE 69609544 T 19960325; DK 96302032 T 19960325; ES 96302032 T 19960325; GB 9505920 A 19950323; ZA 962297 A 19960101