4. Envelopes, wrappers, and paperboard boxes
  5. File folder or file envelope
  6. Hanging type

Fred B. Wilharm

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Pinch bottom valve bag

Envelopes – wrappers – and paperboard boxes – File folder or file envelope – Hanging type
Patent

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Steam seal of bag ply

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent

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Valved lined container

Envelopes – wrappers – and paperboard boxes – File folder or file envelope – Hanging type
Patent

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Profile ID: LFUS-PAI-P-343230

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