CPC Subgroup
A63B 23/18 for improving respiratory function
Full Title
Exercising apparatus specially adapted for particular parts of the body (A63B22/00 takes precedence; force-resisting aspects A63B21/00; electric or electronic controls therefor A63B24/00; devices for exercising or strengthening of fingers, or arms in teaching operation of keyboards G09B15/06) > for improving respiratory function
1 direct subcode
Child Classifications
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