Rear mounting sockets for Scheirich cabinets/drawers

I am looking for any information about Scheirich cabinets. I need the plastic part that holds up the drawer rails. Help!! Anybody knows where/how to get them? Or any info about the company that manufactured these cabinets? House was built circa 1990. Maybe the company was bought out and now operates under a different name. Any information appreciated.
Thanks. Karl Limsam.
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