4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Charles A. Spencer

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Method and system for synchronizing information specific to...

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate

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Method and system for synchronizing information specific to...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2820123

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