A eprom blower from the company Dobbertin
There was also a Dobbertin product called Programmer 4003
Difeerences between the programmer 4003 and 4004 is not known!
The 4004 burned 64 KB EPROMs in addition (27512), the 4003 burned EPROMs up to 32 KB.
Pictures
Reviews
The eprom programmer was tested in CPC Schneider International, issue 9-1985, page 54 (German)