William P Bell

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Collapsible core assembly for a molding apparatus

Plastic article or earthenware shaping or treating: apparatus – Press forming apparatus having opposed press members – Male shaping member and female mold
Reexamination Certificate

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Contact lens mold assemblies and systems and methods of...

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Reexamination Certificate

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Corner-consolidating inflatable apparatus and method for...

Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – By fluid pressure actuated flexible diaphragm
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Lightweight preform and method of manufacture

Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
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Method for coating an ophthalmic lens within an injection...

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Composite or multiple layer
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Profile ID: LFUS-PAI-P-2187545

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