In the NCR DMV driver there's a place reserved for the keyboard ROM, I've just checked, it's another D8741AD ... how can the ROM of these chips be read?
The system technical manual has the listings for Version 1 (which means US English, UK English, Danish, German, Swedish/Finnish, Norwegian, Spanish, Italian) and Version 2 (Swiss-German, Swiss-French, French, Canadian/Australian, Canadian (Bilingual), South African, Portuguese, Yugoslavian (yes, the 80's))
So in theory they could be OCR'd and recompiled.
As for the Siemens PC-D, when the skeleton was added, it was added to pc.c ... but somehow I can't find it.
Robert