EP1012080B1 EP98918464A EP98918464A EP1012080B1 EP 1012080 B1 EP1012080 B1 EP 1012080B1 EP 98918464 A EP98918464 A EP 98918464A EP 98918464 A EP98918464 A EP 98918464A EP 1012080 B1 EP1012080 B1 EP 1012080B1 Authority EP European Patent Office Prior art keywords spring trough base feeder vibratory feeder Prior art date …