DIFF Subgroup
G04F 1/02 by consuming prefixed quantities of materials, e.g. by burning candle
Introduced: September 1968
Full Title
Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers > by consuming prefixed quantities of materials, e.g. by burning candle
No child classifications to compare. This is a leaf node in both IPC and CPC.