4. Plastic article or earthenware shaping or treating: apparatus
  5. Preform reshaping or resizing means: or vulcanizing means...
  6. Including product handling means

Alfred C. Hoffmeister

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Collapsible mandrel for making fiber tubes

Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including product handling means
Patent

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Method of making a collapsible foam mandrel

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
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Profile ID: LFUS-PAI-P-341682

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