4. Plastic and nonmetallic article shaping or treating: processes
  5. Optical article shaping or treating
  6. Including step of mold making

Hans U. Schlapfer

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Method and apparatus for marking photographic orders

Photocopying – Projection printing and copying cameras – Identifying – composing – or selecting
Patent

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Method and apparatus for molding ophthalmic lenses using vacuum

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Including step of mold making
Patent

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Profile ID: LFUS-PAI-P-1958084

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