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Priority claimed from US07/407,899external-prioritypatent/US4989239A/en
Application filed by Mars IncfiledCriticalMars Inc
Publication of NO911868D0publicationCriticalpatent/NO911868D0/no
Publication of NO911868LpublicationCriticalpatent/NO911868L/no
NO91911868A1989-09-151991-05-14Fremgangsmaate og anordning for aa hindre betalingstelefonsvindel og aa redusere vandalisme paa haandmikrotelefonen.
NO911868L
(no)