4. Electrical audio signal processing systems and devices
  5. Hearing aids, electrical
  6. Specified casing or housing

Joseph Sylvester Chang

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Digital multiplier with reduced spurious switching by means...

Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate

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Universal self-attaching inductive coupling unit for connecting

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Patent

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Profile ID: LFUS-PAI-P-1137536

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