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PCE
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DIFF Subgroup
G03B 13/34

Power focusing

Introduced: January 1990

Full Title

Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras > Means for focusing > Power focusing

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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  • G03B 13/36 Autofocus systems since 1990 IPC+CPC Available in IPC and CPC