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)

Introduced: September 1968

Title

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

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)

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

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)

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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G10K 9/02 driven by gas; e.g. suction operated IPC+CPC Available in IPC and CPC
G10K 9/08 driven by water or other liquids IPC+CPC Available in IPC and CPC
G10K 9/10 driven by mechanical means only IPC+CPC Available in IPC and CPC
G10K 9/12 electrically operated +1 CPC IPC+CPC Available in IPC and CPC
G10K 9/18 Details, e.g. bulbs, pumps, pistons, switches or casings IPC+CPC Available in IPC and CPC