发明申请
US20130240569A1 DEVICE COMPRISING A NON-RETURN VALVE 有权
包含非返回阀的装置

DEVICE COMPRISING A NON-RETURN VALVE
摘要:
The invention relates to a device for dispensing a liquid, including a piston that is movable within a chamber and a nozzle connected to the piston such that the movement of the piston causes the movement of the nozzle, wherein one end of the piston engages the chamber so as to form a non-return valve.
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