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1. A space-saving, in-line construction comprising a plurality of valves, each valve having a flat or narrow valve design, wherein each of said valves
has a dimension determining a structural size of the valve, said structural size-determining dimension being less than 9 mm, wherein each of the valves comprises an electromagnetic drive including at least one core and a winding applied thereon, a bobbin and an armature, wherein (a) the core is arranged between two pole pieces, which project over the winding and cooperate with the armature; (b) the bobbin is arranged between the winding and the pole pieces, the bobbin having no wall, at least in the direction of said dimension determining the structural size of the valve, and the winding resting on the core in said direction of the dimension determining the structural size of the valve without a bobbin wall interposed for increasing the space for accommodating the winding; and (c) the armature of the valve cooperates with the pole pieces and is arranged in relation to the pole pieces such that it does not enlarge the structural size of the valve, wherein the armature is further arranged beside the winding-covered core in a direction of a dimension other than that which determines the structural size of the valve.
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