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Class Information
Number: 84/1.01
Name: Music >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
84/1	Instruments	3
84/453	Accessories	349
84/DIG.1	Plural speakers	36
84/DIG.10	Feedback	129
84/DIG.11	Frequency dividers	50
84/DIG.12	Side; rhythm and percussion devices	371
84/DIG.13	Gas discharge tube	1
84/DIG.14	Harmonicas	14
84/DIG.15	Accordions	3
84/DIG.16	Crescendo	1
84/DIG.17	Cabinets	29
84/DIG.18	Tuning	83
84/DIG.19	Light sensitive resistor	17
84/DIG.2	Preference networks	120
84/DIG.20	Monophonic	30
84/DIG.21	Mechanical resonator	10
84/DIG.22	Chord organs	247
84/DIG.23	Electronic gates for tones	46
84/DIG.24	Piezoelectrical transducers	112
84/DIG.25	Pedal clavier	22
84/DIG.26	Reverberation	112
84/DIG.27	Stereo	37
84/DIG.28	Service manuals	0
84/DIG.29	Tape	29
84/DIG.3	Foldable; detachable; collapsible	25
84/DIG.30	Fret control	64
84/DIG.4	Chorus; ensemble; celeste	91
84/DIG.5	Chiff	5
84/DIG.6	Cathode-ray tube	31
84/DIG.7	Electric key switch structure	177
84/DIG.8	Keyed oscillators	40
84/DIG.9	Filtering	203