US D441789 S1
FIG. 1 is an isometric view of a partially corrugated ring binder housing showing my new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is another perspective view thereof with the broken-line rings in the open position;
FIG. 5 is a cross-sectional view thereof; and,
FIG. 6 is another top plan view thereof.
The broken-line showings are environmental only and form no part of the claimed design.