Seam welding not restricted to one of the preceding subgroups

Introduced: September 1968

Full Title

Resistance welding; Severing by resistance heating > Seam welding not restricted to one of the preceding subgroups

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1990.

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B23K 11/082 +1 CPC CPC only CPC only
B23K 11/087 for rectilinear seams since 1990 +1 CPC IPC+CPC Available in IPC and CPC
B23K 11/093 for curved planar seams since 1990 +1 CPC IPC+CPC Available in IPC and CPC

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

Class B23,2013–2023, worldwide · Source: EPO PATSTAT