| 摘要 |
994,307. Strip fasteners. SEISAN NIHON SHA KABUSHIKI KAISHA. March 8, 1962 [Nov. 27, 1961], No. 9012/62. Heading E2S. [Also in Division B8] Plastics sheet material is provided with male and female fastening elements B, A, the male element B being formed with an assymetric arrow-shaped head and the female element having a groove bearing hook-like projections 6, 7, the under-cut faces 10, 11 of the projections corresponding in respect of their depth and inclination, to the depth and inclination of the under surfaces 4, 5 of the male element. The side walls of the groove of the female element may be straight. The material may be used for making bags (see Division B8).
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