EP0122573A2 EP84103920A EP84103920A EP0122573A2 EP 0122573 A2 EP0122573 A2 EP 0122573A2 EP 84103920 A EP84103920 A EP 84103920A EP 84103920 A EP84103920 A EP 84103920A EP 0122573 A2 EP0122573 A2 EP 0122573A2 Authority EP European Patent Office Prior art keywords holes frame corresponding number frame longitudinal Prior art date Legal …
