Latest Armstrong World Industries, Inc. Patents:
FIG. 1 is a top view of a ceiling tile showing my new design;
FIG. 2 is a front view thereof; and
FIG. 3 is a side view thereof.
The bottom of the ceiling tile not shown is plain and unornamented.
U.S. Patent Documents
Current U.S. Class: Symmetrical Pattern Or Pattern Unit (25) (D25/157)