Hermetic sealing of openings, joints, passages or slits

Introduced: September 1968

Title

Titles differ between systems:

IPC: Hermetic sealing of openings, joints, passages, or slits

CPC: Hermetic sealing of openings, joints, passages or slits

Full titles differ between systems:

IPC:

Cases > Hermetic sealing of openings, joints, passages, or slits

CPC:

Cases > Hermetic sealing of openings, joints, passages or slits

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

Navigate with arrow keys, Enter to open

G04B 37/081 +2 CPC CPC only CPC only
G04B 37/084 +2 CPC CPC only CPC only
G04B 37/087 CPC only CPC only
G04B 37/088 CPC only CPC only
G04B 37/10 of winding stems +2 CPC IPC+CPC Available in IPC and CPC
G04B 37/11 of the back cover of pocket or wrist watches since 1980 +2 CPC IPC+CPC Available in IPC and CPC