| 摘要 |
Mask for graphic reproduction, by marking, of an alphanumeric code on a surface in general, comprising a plate 3 of an appropriate material on which an alphanumeric code is defined by through-engravings 5, characterized in that the said through-engravings have walls 6 which converge towards the bottom of the cut which opens onto the face of the said plate which is turned towards a surface to be marked. <IMAGE>
|
