4. Electricity: electrical systems and devices
  5. Control circuits for electromagnetic devices
  6. Systems for magnetizing, demagnetizing, or controlling the...

Der-Ray Huang

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Apparatus for magnetizing a magnetic roller

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – For magnetizing or demagnetizing
Patent

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Apparatus for simultaneously coating a film of magneto-optical r

Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent

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Bifocal optical pickup head

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate

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Bifocal optical pickup head

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate

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Cyanine dyes mixture as optical recording media

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent

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Profile ID: LFUS-PAI-P-271981

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