Don't know anything about those but in researching a pin ball machine once I found info eventually by getting the info off the circuit boards and working backwards.......
Who made those, then applications and finally what machined they went to...years....
Took forever but finally got enough info to learn the damn thing wasn't worth sh*t.
Also dont overlook inspection sticker and licensing stickers. If you can trace it back to who owned it or serviced it........