Flash imaging and voidable articles
EL Johnsen, SD Fantone - US Patent 5,109,153, 1992 - Google Patents
Voidable articles are made with an identification code and a radiant energy responsive
material coated over said code. The material is invisible and remains unactivated in ambient …
material coated over said code. The material is invisible and remains unactivated in ambient …
Flash imaging and voidable articles
EL Johnsen, SD Fantone - US Patent 5,109,153, 1992 - freepatentsonline.com
Voidable articles are made with an identification code and a radiant energy responsive
material coated over said code. The material is invisible and remains unactivated in ambient …
material coated over said code. The material is invisible and remains unactivated in ambient …