Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves {, i.e. valves that open and close a passageway by sliding over a port}, e.g. formed with slidable spouts {having a rotational or helicoidal movement between planar parts }
Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves {, i.e. valves that open and close a passageway by sliding over a port}, e.g. formed with slidable spouts {having a rotational or helicoidal movement between planar parts }