1592953267000 1312632483000 term-41653 1616540983006 1312632534000 1616290483398 adlib fitz-online adlib-term-41653 0b3ea43c-0d4e-31f8-91ed-a7c40ff5cba2 2 1 scope note Use for electronic or radio-wave transmission, broadcast, or reproduction systems of communication relying on sounds. reference term-41076 adlib-term-41076 d795304b-8f15-3938-82ed-601ee5ee4883 sound system V.PC.ALO.AFU.AFU.ALO 1 code V.PC.ALO.AFU.AFU.ALO 1 sound systems reference term-41081 adlib-term-41081 4ac40a2f-96d2-3169-95a3-172d17bdfeac communication systems sound systems term