4. Stock material or miscellaneous articles
  5. Structurally defined web or sheet
  6. Edge feature

Ernst Raabe

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Dust filter bag containing nano non-woven tissue

Gas separation – Flexible or collapsible bag type – Seaming – reinforcing or bag structure
Reexamination Certificate

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Dust filter bag including a highly porous backing material ply

Gas separation – Two or more separators – Plies or layers of different characteristics or orientation
Reexamination Certificate

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Multi-ply filter lasminate/composite for manufacturing vacuum cl

Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature
Patent

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Profile ID: LFUS-PAI-P-948573

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