发明授权
US08556191B2 Spray head including a sonotrode 失效
喷头包括超声波发生器

Spray head including a sonotrode
摘要:
A device for spraying a cosmetic composition may include a sonotrode, the sonotrode having an end collar defining an ejection surface for ejecting particles of composition, the collar being suitable for bending under the effect of vibration of the sonotrode.
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