DIFF Subgroup
G09F 23/16 on clocks, e.g. controlled by the clock mechanism
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Advertising on or in specific articles, e.g. ashtrays, letter-boxes > on clocks, e.g. controlled by the clock mechanism
CPC:
Advertising on or in specific articles, e.g. ashtrays, letter-boxes (on or in vehicles G09F21/00) > on clocks, e.g. controlled by the clock mechanism
No child classifications to compare. This is a leaf node in both IPC and CPC.