DIFF Subgroup
G03B 17/18 Signals indicating condition of a camera member or suitability of light (indicating depth of field G03B13/30)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Signals indicating condition of a camera member or suitability of light
CPC: Signals indicating condition of a camera member or suitability of light (indicating depth of field G03B13/30)
Full Title
Full titles differ between systems:
IPC:
Details of cameras or camera bodies; Accessories therefor > Signals indicating condition of a camera member or suitability of light
CPC:
Details of cameras or camera bodies; Accessories therefor (lens hoods or caps G03B11/04) > Signals indicating condition of a camera member or suitability of light (indicating depth of field G03B13/30)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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