| 摘要 |
1508725 Hook - fastenings C GUBBELS 2 Sept 1976 [9 Oct 1975] 36438/76 Heading E2A In a garment fastener, eye 18 is retained on post 4 by pivoted arm 11 which is indexed in 'open' and 'closed' positions by U - shaped spring 8 snapping into slots 16 or 17. |
