US D203639 S
Description (OCR text may contain errors)
United States Patent 0 Des. 203,639 Patented Feb. 1, 1966 REFRACTORY BLOCK Charles H. Miller, 6639 Harrington, Youngstown, Ohio, and William J. Wilson, 156 Northwest SL, Columbiana,
Filed Mar. 11, 1965, Ser. No. 84,215
Term of patent 14 years (Cl. D8125) FIGURE 1 is a perspective view of a refractory block showing our new design;
FIGURE 2 is a plan view thereof; and
FIGURE 3 is a partial sectional elevational View taken along the line 33 of FIGURE 2.
The ornamental design for a refractory block, substantantially as shown.
FIE 1 References Cited by the Examiner UNITED STATES PATENTS 4/1964 Hall D182 X 9/1953 Heuer et al. 9/1958 Samuel.
11/ 1960 Garretts.
9/ 1958 Samuel.
WALLACE R. BURKE, Primary Examiner.
A. HUGO WORD, Assistant Examiner.