| 摘要 |
A dose counting device comprises a fluid dose distributor provided with an operating member for dispensing doses of fluid through the mouth of a container, a ring nut for fastening the distributor means onto the mouth, and elastic means suitable for transforming the translatory motion of the operating member with respect to the ring nut into a rotary and axially reciprocating motion of a rotating and axially translatable element to cause the appearance of a different numerical index provided on the rotating element at an observation position. |
