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B29K2833/20

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BPERFORMING OPERATIONS TRANSPORTING B29Plastic substance processing B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS B29K2833/00Use of polymers of unsaturated acids or derivatives thereof as mould material

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Patents Grantslast 30 patents

Information Patent Grant
Mold materials for silicone containing lens materials
- Patent number 5,274,008
- Issue date Dec 28, 1993
- Bausch & Lomb Incorporated
- Yu-Chin Lai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of molding shaped polymeric articles
- Patent number 5,158,717
- Issue date Oct 27, 1992
- Bausch & Lomb Incorporated
- Yu-Chin Lai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents