DIFF Subgroup
G04B 37/11 of the back cover of pocket or wrist watches
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Cases > Hermetic sealing of openings, joints, passages, or slits > of the back cover of pocket or wrist watches
CPC:
Cases > Hermetic sealing of openings, joints, passages or slits > of the back cover of pocket or wrist watches
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open