DIFF Subgroup
G02B 1/04 made of organic materials, e.g. plastics (G02B1/08 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: made of organic materials, e.g. plastics
CPC: made of organic materials, e.g. plastics (G02B1/08 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Optical elements characterised by the material of which they are made; Optical coatings for optical elements > made of organic materials, e.g. plastics
CPC:
Optical elements characterised by the material of which they are made; Optical coatings for optical elements > made of organic materials, e.g. plastics (G02B1/08 takes precedence)
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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