4. Plastic article or earthenware shaping or treating: apparatus
  5. Means withdrawing trowel type shaping member from within...

Gerald R. Crawford

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Long-wear packerhead segment

Metal treatment – Stock – Ferrous
Patent

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Method and apparatus for production of concrete pipe by the pack

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
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Packerhead assembly

Plastic article or earthenware shaping or treating: apparatus – Means withdrawing trowel type shaping member from within...
Patent

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Profile ID: LFUS-PAI-P-767922

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