Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
Inventor
active
Hydrophilic, soft and oxygen permeable copolymer composition
Hydrophilic, soft and oxygen permeable copolymer compositions
Non-irritating soft gas permeable contact lens and process for p
Soft gas permeable contact lens having improved clinical perform
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