4. Plastic and nonmetallic article shaping or treating: processes
  5. Mechanical shaping or molding to form or reform shaped article
  6. Plural sequential shaping or molding steps on same workpiece

Craig McLeod Duff

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Flow means

Pipes and tubular conduits – With flow regulators and/or baffles – Flow facilitating
Reexamination Certificate

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Helical formation for a conduit

Pipes and tubular conduits – With flow regulators and/or baffles – Flow facilitating
Reexamination Certificate

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Method for introducing an internal helical formation into a...

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Plural sequential shaping or molding steps on same workpiece
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2319826

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