4. Plastic and nonmetallic article shaping or treating: processes
  5. Forming sound grooves in records
  6. Die pressing disk type records

Dennis L. Matthies

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Conductive video disc

Dynamic information storage or retrieval – Storage medium structure – Electrical track structure
Patent

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Metallized video disc having an insulating layer thereon

Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent

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Processing relatively thin glass sheets

Glass manufacturing – Processes – Glass preform treating
Reexamination Certificate

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Providing optical elements over emissive displays

Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate

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Reducing the visibility of seams of modular displays

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate

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Profile ID: LFUS-PAI-P-815889

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