4. Plastic and nonmetallic article shaping or treating: processes
  5. Direct application of fluid pressure differential to...
  6. Shaping against interior of a forming surface by rotation of...

Lawrie A. Williamson

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Method and apparatus for producing multi-layer expanded films

Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Shaping against interior of a forming surface by rotation of...
Patent

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Method and apparatus for producing multi-layer expanded films

Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Patent

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Profile ID: LFUS-PAI-P-1545103

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