DIFF Subgroup
F16B 43/02 with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Washers or equivalent devices; Other devices for supporting bolt-heads or nuts > with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
CPC:
Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; ) > with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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