4. Plastic article or earthenware shaping or treating: apparatus
  5. Product or preform repair or restoring means

Steven R. Leffler

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Apparatus for everting a tube

Plastic article or earthenware shaping or treating: apparatus – Product or preform repair or restoring means
Reexamination Certificate

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Method and apparatus for installing a flexible tubular liner

Plastic and nonmetallic article shaping or treating: processes – Repairing or restoring consumer used articles for reuse – Hollow- or container-type articles
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2453350

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