G09F 9/30 in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: in which the desired character or characters are formed by combining individual elements
CPC: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00)
Full Title
Full titles differ between systems:
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements > in which the desired character or characters are formed by combining individual elements
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) > in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00)
Of 8 combined children, 7 exist in both systems.
1 codes are CPC-only extensions.
5 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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- G09F 9/302 characterised by the form or geometrical disposition of the individual elements since 2000 +2 CPC IPC+CPC Available in IPC and CPC
- G09F 9/305 being the ends of optical fibres (G09F9/302 takes precedence) since 2000 +1 CPC IPC+CPC Available in IPC and CPC
- G09F 9/307 being incandescent filaments (G09F9/302 takes precedence; incandescent panels comprising a number of separate incandescent bodies, per se H01K9/00) since 1980 IPC+CPC Available in IPC and CPC
- G09F 9/313 being gas discharge devices (G09F9/302 takes precedence; gas discharge panels comprising a number of discharge gaps per se H01J17/49) since 1980 IPC+CPC Available in IPC and CPC
- G09F 9/33 being semiconductor devices, e.g. diodes since 1980 +1 CPC IPC+CPC Available in IPC and CPC
- G09F 9/35 being liquid crystals (G09F9/302 takes precedence; liquid crystal materials C09K19/00; ) since 1980 IPC+CPC Available in IPC and CPC
- G09F 9/37 being movable elements (G09F9/302 takes precedence) since 1980 +3 CPC IPC+CPC Available in IPC and CPC