| 摘要 |
A manually actuable stamp provided with first and second housing sections, one section being provided with stamping platen movable into engagement with a bulging surface and provided with a stamping surface conforming to the bulging surface when in engagement therewith, one of the first and second sections being provided with a continuous rib conforming to the contour of the bulging surface to prevent lateral slippage of the stamp thereon. |
