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

Ching Shun Wang

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Focus-type encode device

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

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Multiple-wheel input device

Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate

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Photo-detector based calculating means having a grating wheel wi

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

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Profile ID: LFUS-PAI-P-1273476

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