DIFF Subgroup
G10K 9/08 driven by water or other liquids
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers > driven by water or other liquids
CPC:
Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers (loudspeakers or like acoustic electromechanical transducers H04R) > driven by water or other liquids
No child classifications to compare. This is a leaf node in both IPC and CPC.