4. Communications: electrical
  5. Audible indication
  6. Percussion-type sound producer

Charles R. Thurber, Jr.

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Charge pump mode transition control

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate

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Charging circuit for a reference capacitor

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent

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Dual slope converter with large apparent integrator swing

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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High swing interface stage

Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Patent

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Pulse frequency operation of regulated charge pumps

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Utility Patent

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Profile ID: LFUS-PAI-P-1227947

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