hehe, just found these "Aigasdev Oohi" and "Hoihawe Eas", googled them and the only result was this thread, lol
Hmmm, I think it's some filler text... Doesn't make sense anyways...
I've also noticed that some of these signs are completely black, looks like a texture is missing on these... (look straight 90 degrees to the right from the helsman's table)