TREA

Application hearing aid

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Industry

  • CPC
  • H01H2300/004
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Parent Industries

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES H01H2300/00Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H

Current Industry

H01H2300/004Application hearing aid
Industries