| http://www.w3.org/ns/prov#value | - The device of claim 1, characterized in that the container is a cartridge comprising a) a generally cylindrical barrel with a general symmetry axis and having a front end and a rear end, b) an opening or a preparation for an opening at its front end, c) at least one displaceable piston inserted in the barrel between the front end and the rear end. 4.
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