Beissbarth 3000 eprom dump.

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I am looking eprom dump memory to a computer to measure the geometry of the axis of Beissbarth 3000.Year 1986. Thanks in advance for any help.

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I found five dump eprom : B4-7.1..BIN , B8-11.1..BIN, Bf-3.2.DT.BIN, B12-15.1..BIN, ZS-1.3..BIN ,
http://www.digital-kaos.co.uk/forums/downloads.php?do=file&id=1465& act=down (http://www.digital-kaos.co.uk/forums/downloads/firmware/28/beissbarth-dump-1465/)
and I'm looking for yet : SYS 1.1 DB Routine (C) Beissbarth.BIN SYS 2.1 DB Routine (C) Beissbarth.BIN SYS 3.1 DB Routine (C) Beissbarth.BIN SYS 4.1 DB Routine (C) Beissbarth.BIN ,FA-1.3.BIN ,
Please, suggestions or tips, where can I find these ripples eprom.