DIFF Subgroup Additional Only
Y10T 292/0989 Plural rollback elements directionally selectively effective
Full Title
Closure fasteners > Bolts > Sliding > Spring projected > Operating means > Cam > Plural rollback elements directionally selectively effective
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.