Very interesting. It looks like there are only two symbols and they repeat.
Maybe it says, "hot handle hot handle hot handle?"
In any case, the two symbols also look similar. They are both basically three sides of a box (the left side having a slight curvature near the bottom) with a design inside. The inside design looks to be the same only flipped vertically in alternate symbols.
So, if they are letters, it must be something very simple like "empty full empty full."
Please let us know what you find out.