DIFF Main Group
F23Q 3/00 Igniters using electrically-produced sparks (sparking-plugs H01T13/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Ignition using electrically-produced sparks
CPC: Igniters using electrically-produced sparks (sparking-plugs H01T13/00)
Full Title
Full titles differ between systems:
IPC:
Ignition using electrically-produced sparks
CPC:
Igniters using electrically-produced sparks (sparking-plugs H01T13/00)
CPC subdivides this area 5x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
Child Classifications
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