B PERFORMING OPERATIONS; TRANSPORTING
B05 SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
B05B17/00 Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
B05B17/04 operating with special methods
B05B17/06 using ultrasonic; or other kinds of; vibrations
B05B17/0607 generated by electrical means, e.g. piezoelectric transducers