DIFF Subgroup
B08B 7/02 by distortion, beating, or vibration of the surface to be cleaned
Introduced: September 1968
Full Title
Cleaning by methods not provided for in a single other subclass or a single group in this subclass > by distortion, beating, or vibration of the surface to be cleaned
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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