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Arrangements for making sound-effects
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Industry
CPC
A63J5/04
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Parent Industries
A
HUMAN NECESSITIES
A63
Sports, games
A63J
DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE CONJURING APPLIANCES OR THE LIKE
A63J5/00
Auxiliaries for producing special effects on stages, or in circuses or arenas
Current Industry
A63J5/04
Arrangements for making sound-effects
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