In a patent application, I ran into a statement that a drawing is "a partially schematic and partially diagrammatic view". I had though that schematic views and diagrammatic views are the same thing: simplified sketchy drawing.
I searched for these terms in other patents and found that views could be "schematic diagrammatic", "schematic rather than diagrammatic", etc. though I can't see any difference.
Do these words have any special distinct meanings in patentese?