| 摘要 |
A stopper device (10) has a base (14) and a cap (12), the base having at least one housing (34). At least one first-opening marker (46). The base (14) has a cover (40) separating the outer radial opening (38) from the upper axial opening (36) and delimiting an upper part (34S) of the housing, the first-opening marker (46), in the closed position of the cap (12), being located in the upper part (34S) of the housing and concealed by the cover (40), the first-opening marker (46) being able, after the opening marker (46) and the cap (12) have been separated, to drop into a lower part (341) of the housing, the radial opening (38) being disposed so as to render the first-opening marker (46) that has dropped into the lower part (341) visible. |
