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Frequency divider with single resonant circuit and use thereof a

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Frequency divider with variable capacitance

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Frequency dividing transponder, including amorphous magnetic all

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Frequency division multiplex digital seismic telemetry system

Communications: electrical – Wellbore telemetering or control – Selective control of subsurface equipment
Patent

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Frequency division multiplexed acknowledge back paging system

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Frequency generating circuit

Communications: electrical – Audible indication – Ultrasonic pest control
Patent

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Frequency hopping spread spectrum passive acoustic wave identifi

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Frequency hopping spread spectrum passive acoustic wave...

Communications: electrical – Selective – Interrogation response
Reexamination Certificate

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Frequency hopping spread spectrum passive acoustic wave...

Communications: electrical – Selective – Interrogation response
Reexamination Certificate

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Frequency modulation coding methods with reduced transition inte

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

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Frequency monitoring device

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Frequency monitoring device

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Frequency monitoring to detect plasma process abnormality

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Frequency multiplexed water leak detection system

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent

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Frequency regulation of an oscillator for use in MWD...

Communications: electrical – Wellbore telemetering or control
Reexamination Certificate

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Frequency selective annunciator system

Communications: electrical – Condition responsive indicating system – With particular system function
Patent

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Frequency sensitive switching circuit

Communications: electrical – Systems – Selsyn type
Patent

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Frequency sensor

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Frequency shift compensation, such as for use in a wireless...

Communications: electrical – Continuously variable indicating – With meter reading
Reexamination Certificate

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Frequency sweeping audio signal device

Communications: electrical – Audible indication – Electronic siren
Patent

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