4. Dynamic magnetic information storage or retrieval
  5. General processing of a digital signal
  6. Head amplifier circuit

Herman Ferrier

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Electrical circuit for driving LEDs in dissimilar color...

Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate

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Multiply pulsed magnetic recording

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Head amplifier circuit
Patent

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Spin stand testing system with fine positioner for head...

Measuring and testing – Testing of apparatus
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1054505

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