I've done mission trips to 3rd world countries. They do use the treadle machines. Not sure if for industry though. The ones I saw were being used for teaching young women to sew.
knittnmom, your FRiend Ellendra started a prayer thread, I heard you were in trouble and I have prayed for you as well. I hope you get well, and return to post so we can chat.
We swim in different circles here on FR...I rarely stray into these threads, so that is probably why we never cross paths.