EP3330202A1 EP16832617.1A EP16832617A EP3330202A1 EP 3330202 A1 EP3330202 A1 EP 3330202A1 EP 16832617 A EP16832617 A EP 16832617A EP 3330202 A1 EP3330202 A1 EP 3330202A1 Authority EP European Patent Office Prior art keywords core layer belt strength conveyor belt width direction Prior art date Legal …