Andreas, who's contributed to the M20 emulation progress, has dumped some more ICs from other PCs which I'm posting in the appropriate threads:
I've updated this archive with the contents of the 8741AD's contained in the NCR DMV mouse adapter, the mainboard and keyboard. DMV ROM addendum updated 2012-05-28
The PCD ROM
archive now also contains the contents of the 8741AD from the PC-D graphics board.
Andreas managed to read one of the PALs from the DEC Rainbow 100's graphics board, the other contained only zeroes or was protected. It's included here: more Rainbow files
Andreas could not read the various NEC 7220's