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Priority claimed from GB888812513Aexternal-prioritypatent/GB8812513D0/en
Application filed by British Pipe CoatersfiledCriticalBritish Pipe Coaters
Publication of NO905084D0publicationCriticalpatent/NO905084D0/en
Publication of NO905084LpublicationCriticalpatent/NO905084L/en
PROCEDURE FOR THE PREPARATION OF AN ELECTRIC SUPPLY PIPE CONSISTING OF AT LEAST TWO INSULATED INSULATED, CONCENTRIC SINGLE CONDUCTORS IN THE FORM OF METAL PIPES.