4. Envelopes, wrappers, and paperboard boxes
  5. Wrapper
  6. Letter sheets

Alvin A. Sobel

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Combined form for visual matter, written descriptions and mailin

Envelopes – wrappers – and paperboard boxes – Wrapper – Letter sheets
Patent

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Reinforcement for magnetic recording disk

Dynamic magnetic information storage or retrieval – Record medium – Disk
Patent

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Profile ID: LFUS-PAI-P-1048242

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