Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices

Introduced: September 1968

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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G02B 23/02 involving prisms or mirrors (G02B23/14 takes precedence) IPC+CPC Available in IPC and CPC
G02B 23/12 with means for image conversion or intensification +1 CPC IPC+CPC Available in IPC and CPC
G02B 23/14 Viewfinders (for photographic apparatus G03B13/02) +1 CPC IPC+CPC Available in IPC and CPC
G02B 23/16 Housings; Caps; Mountings; Supports, e.g. with counterweight +1 CPC IPC+CPC Available in IPC and CPC
G02B 23/24 Instruments for viewing the inside of hollow bodies, e.g. fibrescopes since 1985 +2 CPC IPC+CPC Available in IPC and CPC