4. Electric lamp and discharge devices: systems
  5. Cathode ray tube circuits
  6. Cathode-ray deflections circuits

Steffen Lehr

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Apparatus for reproduction or recording data or information...

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate

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Apparatus for scanning optical recording media

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate

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Apparatus for scanning optical recording media using DPD...

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate

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Automatically adapting forward or reversed biased photodiode...

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate

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Frequency response-compensated circuit

Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent

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Profile ID: LFUS-PAI-P-744097

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