Electrical audio signal processing systems and devices

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Electricity: measuring and testing
(Class No. 324)
Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system
(Class No. 987)
Facsimile and static presentation processing
(Class No. 358)
Movable or removable closures
(Class No. 049)
Organic compounds -- part of the class 532-570 series
(Class No. 549)
Dentistry
(Class No. 433)
Spring devices
(Class No. 267)
Amusement devices: games
(Class No. 273)
Rotary kinetic fluid motors or pumps
(Class No. 415)
Combustion
(Class No. 431)
Package making
(Class No. 053)
Flexible bags
(Class No. 383)

Photography
(Class No. 396)
Coherent light generators
(Class No. 372)
Data processing: database and file management or data structures
(Class No. 707)
Data processing: vehicles, navigation, and relative location
(Class No. 701)
Foods and beverages: apparatus
(Class No. 099)
Fluent material handling, with receiver or receiver coacting means
(Class No. 141)
Batteries: thermoelectric and photoelectric
(Class No. 136)
Cutting
(Class No. 083)
Motors: expansible chamber type
(Class No. 091)
X-ray or gamma ray systems or devices
(Class No. 378)
Receptacles
(Class No. 220)
Handling: hand and hoist-line implements
(Class No. 294)
Surgery: light, thermal, and electrical application
(Class No. 607)
Beds
(Class No. 005)
Geometrical instruments
(Class No. 033)
Woodworking
(Class No. 144)
Printing
(Class No. 101)
Refrigeration
(Class No. 062)
Brakes
(Class No. 188)
Harvesters
(Class No. 056)
Miscellaneous hardware
(Class No. 016)
Electrical generator or motor structure
(Class No. 310)
Electricity: conductors and insulators
(Class No. 174)
Plant husbandry
(Class No. 047)
Optics: image projectors
(Class No. 353)
Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
(Class No. 623)
Electronic digital logic circuitry
(Class No. 326)
Measuring and testing
(Class No. 073)
Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
(Class No. 008)
Etching a substrate: processes
(Class No. 216)
Synthetic resins or natural rubbers -- part of the class 520 series
(Class No. 526)
Optics: measuring and testing
(Class No. 356)
Locks
(Class No. 070)
Buckles, buttons, clasps, etc.
(Class No. 024)
Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
(Class No. 530)
Synthetic resins or natural rubbers -- part of the class 520 series
(Class No. 522)
Fluid sprinkling, spraying, and diffusing
(Class No. 239)
Land vehicles
(Class No. 280)
Electricity: power supply or regulation systems
(Class No. 323)
Inductor devices
(Class No. 336)
Pipes and tubular conduits
(Class No. 138)
Error detection/correction and fault detection/recovery
(Class No. 714)
Material or article handling
(Class No. 414)
Fishing, trapping, and vermin destroying
(Class No. 043)
Cutting by use of rotating axially moving tool
(Class No. 408)
Internal-combustion engines
(Class No. 123)
Electrical computers and digital data processing systems: input/output
(Class No. 710)
Electrical audio signal processing systems and devices
(Class No. 381)
Pumps
(Class No. 417)
Compositions
(Class No. 252)
Telephonic communications
(Class No. 379)
Motor vehicles
(Class No. 180)
Wells
(Class No. 166)
Tools
(Class No. 081)
Adhesive bonding and miscellaneous chemical manufacture
(Class No. 156)
Optical waveguides
(Class No. 385)
Ships
(Class No. 114)
Fluid-pressure and analogous brake systems
(Class No. 303)
Seal for a joint or juncture
(Class No. 277)
Data processing: financial, business practice, management, or cost/price determination
(Class No. 705)
Coating apparatus
(Class No. 118)
Synthetic resins or natural rubbers -- part of the class 520 series
(Class No. 528)
Radiation imagery chemistry: process, composition, or product thereof
(Class No. 430)
Semiconductor device manufacturing: process
(Class No. 438)
Plastic and nonmetallic article shaping or treating: processes
(Class No. 264)
Mechanical guns and projectors
(Class No. 124)
Valves and valve actuation
(Class No. 251)
Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
(Class No. 342)
Organic compounds -- part of the class 532-570 series
(Class No. 564)
Metal fusion bonding
(Class No. 228)
Work holders
(Class No. 269)
Electricity: electrical systems and devices
(Class No. 361)
Card, picture, or sign exhibiting
(Class No. 040)
Coded data generation or conversion
(Class No. 341)
Electricity: motive power systems
(Class No. 318)
Electrical transmission or interconnection systems
(Class No. 307)
Package and article carriers
(Class No. 224)
Chemistry: electrical current producing apparatus, product, and process
(Class No. 429)
Surgery: splint, brace, or bandage
(Class No. 602)
Oscillators
(Class No. 331)
Catalyst, solid sorbent, or support therefor: product or process of making
(Class No. 502)
Music
(Class No. 084)
Chemistry: molecular biology and microbiology
(Class No. 435)
Supports: cabinet structure
(Class No. 312)