| 摘要 |
<p>For drawing off liquid in doses of volume which is predetermined, also variable, there is provided a syringe device with a cylinder (5) associated with the removable obturator (3) of the bottle, and a piston (9) which is maneuvrable from the outside; provided on the shaft (9A) of the piston (9) is a graduation (G), by means of which it is possible to assess from the outside the volume of liquid drawn by the sliding of the piston. <IMAGE></p> |
