Method for molding of substrate for information recording medium

Method for molding plastic material into disk shaped sabstrate f

Method for producing disc records having molded-in center holes

Method for producing injection molded and centrally apertured di

Method for producing injection molded and centrally apertured di

Method for the manufacture of capacitive electronic discs

Method for the manufacture of flexible disks

Method of making a laminated recorded disc

Method of making a video disc from a disc preform

Method of making picture phonograph record

Method of manufacturing a plastic record carrier having a strati

Method of manufacturing information storage mediums

Method of manufacturing video disc

Method of producing plate-shaped body

Moulding of gramophone records

Process and apparatus for injection-molding product having minut

Process for making a record

Process for making a video record disc

Process for producing substrate for optical disk by annealing su

Process for producing substrate of optical disc