US PATENT SUBCLASS 381 / 322
.~ Specified casing or housing

Current as of: June, 1999
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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

312  DF  HEARING AIDS, ELECTRICAL {9}
322.~ Specified casing or housing {8}
323  DF  .~.~> Power supply or programming interface terminals
324  DF  .~.~> Component mounting
325  DF  .~.~> Cerumen protection
326  DF  .~.~> Non-air-conducted sound delivery
327  DF  .~.~> Spectacle
328  DF  .~.~> Ear insert {1}
330  DF  .~.~> Hook over ear
331  DF  .~.~> Inductive pickup

DEFINITION

Classification: 381/322

Specified casing or housing:

(under subclass 312) Subject matter including a specific container for the hearing aid components.