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- Manufacture of microphones, loudspeakers, ear-phone, amplifiers, sound amplifier sets and other sound/video reproducing apparatus n.e.c. (16)
- Manufacture of television receivers (including manufacture of video monitors/projectors), whether or not combined in the same housing with radiobroadcast receivers or sound or video recording or reproducing apparatus (7)
- Manufacture of reception apparatus for radio broadcasting (includes apparatus with sound recording or reproducing apparatus or a clock). (3)
- Manufacture of video recording or reproducing apparatus(manufacture of video cameras is classified in class 3320). (3)
- Manufacture of magnetic tape recorders and other sound recording apparatus (telephone answering machines, cassette type recorders and so forth) (2)
- Manufacture of specialized parts for equipment classified in this class (pick-ups, sound-heads, record cutters, aerials etc.) and other sound or video recording and reproducing apparatus, n.e.c. (1)
- 411014 (4)
- 411038 (4)
- 411001 (3)
- 411030 (3)
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- 411041 (3)
- 411002 (2)
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- 411007 (2)
- 411005 (1)
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- 411021 (1)
- 411027 (1)
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- 411035 (1)
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- 411048 (1)
- 411052 (1)
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- 412115 (1)
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- 412307 (1)
- 413001 (1)
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- 415408 (1)
- 416012 (1)
- 416304 (1)
- 416410 (1)