DIFF Subgroup
H05K 3/46 Manufacturing multilayer circuits
Introduced: January 1980
Title
Titles differ between systems:
IPC: Manufacturing multi-layer circuits
CPC: Manufacturing multilayer circuits
Full Title
Full titles differ between systems:
IPC:
Apparatus or processes for manufacturing printed circuits > Manufacturing multi-layer circuits
CPC:
Apparatus or processes for manufacturing printed circuits > Manufacturing multilayer circuits
Of 6 combined children, 0 exist in both systems.
6 codes are CPC-only extensions.
Child Classifications
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