Acoustical correction tile
US D190647 S
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United States Patent 0 "ice Patented 331 29112 ACOUSTICAL CORRECTION TILE Charles W. Allen, In, Chicago, Ill., assignor to The Celotex Corporation, Chicago, Ill., a corporation of Delaware Filed Jan. 25, 1960, Ser. No. 59,143
Term of patent 14 years (Cl. D18-2) will. Mimi .liii iiiiHh ii iii FIGURE 1 is a front face view of an acoustical cor- References Cited in the file of this patent rection tile, showing my new design; and UNITED STATES PATENTS tilFIGURE 2 is an edge v1ew of sald acoustical correction D. 173,623 Lund Dec. 7, 1954 D. 188,491 Green Aug. 2, 1960 I claim: The ornamental design for an acoustical correction tile, OTHER REFERENCES as shown. Architectural Record for October 1958, page 38.