Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with plug valves {, i.e. valves that open and close a passageway by turning a cylindrical or conical plug without axial passageways provided with a spout, e.g. "escargot"-type valve}
Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with plug valves {, i.e. valves that open and close a passageway by turning a cylindrical or conical plug without axial passageways provided with a spout, e.g. "escargot"-type valve}