| 摘要 |
PCT No. PCT/SE80/00259 Sec. 371 Date Jun. 16, 1981 Sec. 102(e) Date Jun. 16, 1981 PCT Filed Oct. 24, 1980 PCT Pub. No. WO81/01128 PCT Pub. Date Apr. 30, 1981.The invention relates to a can closure of plastic having a fastening flange around its periphery. A groove (5) is positioned inside the flange and inside the groove is a central portion (7) bowed inwardly in relation to the can. The groove (5) is interrupted by an up-bent elevation (9) extending substantially flush with the upper edge of the flange up to the central portion. An opening tab (11) extends along the elevation from adjacent the flange to near the center of said central portion (7). |
