HITACHI HM-4619-F-AA-2W color monitors

I have some HITACHI HM-4619-F-AA-2W color monitors that appear to have
never been used. All of them are still in the plastic wrap and appear
to have never even been opened. Most of them are in the orginal boxes
and the two that are not, are still in the plastic wrap.

These monitors are 1152 x 900 and the paperwork shows:
HM-4619 W WITH REVISION A1 COLOR MONITOR ( FOR COMPUTER VISION )

These monitors do not have the normal case around them so I assume
they were for mounting in some kind of cabinet for being used for
"computer vision" or maybe even for medical or industrial
installations. The orginal cost of these units was close to $2000
each so they must have been high end equipment.

Does anyone know if there is still any use for these monitors? Or what
kind of companies may still have these units in use? Any help would
be apreciated!

Mikel Giles