Ear and mouth
Subclass of:
181 - Acoustics
181126000 - ANATOMIC OR PROSTHETIC RELATION
Patent class list (only not empty are listed)
Deeper subclasses:
Class / Patent application number | Description | Number of patent applications / Date published |
---|---|---|
181130000 | Auditory canal insert | 68 |
181129000 | Ear | 22 |