Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
Inventor
active
Intraocular lens with a press stretched portion
Intraocular lenses and process for the producing molded-in...
Process for the production of an intraocular lens
Siloxane-modified polyester resins and production processes ther
Water and oil repellants
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