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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Main Group
G03D 9/00

Diffusion development apparatus

Introduced: September 1968

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

Child Classifications

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  • G03D 9/003 CPC only CPC only
  • G03D 9/006 CPC only CPC only