G09F 9/307 being incandescent filaments (G09F9/302 takes precedence; incandescent panels comprising a number of separate incandescent bodies, per se H01K9/00)
Introduced: January 1980
Title
Titles differ between systems:
IPC: being incandescent filaments
CPC: being incandescent filaments (G09F9/302 takes precedence; incandescent panels comprising a number of separate incandescent bodies, per se H01K9/00)
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 > being incandescent filaments
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) > being incandescent filaments (G09F9/302 takes precedence; incandescent panels comprising a number of separate incandescent bodies, per se H01K9/00)
No child classifications to compare. This is a leaf node in both IPC and CPC.