| 摘要 |
<p>1535572 Sliding clasp fastener elements YOSHIDA KOGYO KK 22 Oct 1976 [31 Oct 1975] 43905/76 Heading E2S The separate interengaging elements 12 each include a coupling head 14 from which extend spaced legs 15, 16 to define a curved inner peripheral surface 24 which engages the beaded longitudinal edge of the stringer tape, the surface 24 being provided with upper and lower teeth 28, 28 on each leg 15, 16 to bite into and deform the beaded edge.</p> |
