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Priority claimed from GB4303/75Aexternal-prioritypatent/GB1513742A/en
Application filed by Ici LtdfiledCriticalIci Ltd
Priority to AT223378ApriorityCriticalpatent/AT362358B/en
Publication of ATA223378ApublicationCriticalpatent/ATA223378A/en
Application grantedgrantedCritical
Publication of AT362358BpublicationCriticalpatent/AT362358B/en
AT223378A1975-01-311978-03-30
METHOD FOR PRODUCING NEW 6-ARYL-2,3, 6,7-TETRAHYDRO-5H-PYRROLO (1,2-A) IMIDAZOLES AND THEIR ACID ADDITION SALTS
AT362358B
(en)
Counterfeiting and theft protection system, especially for valuable and security documents, has electronic component(s) in form of LCR oscillator(s) stimulated by electromagnetic radiation