of tapes having multiple tracks parallel to edge of record carrier by offset splicing to form endless loop with one or more helical tracks

Full Title

Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus > with provision for splicing to provide permanent or temporary connections > of tapes having multiple tracks parallel to edge of record carrier by offset splicing to form endless loop with one or more helical tracks