Cylindrical, refractory, hollow brick

Static structures (e.g. – buildings) – Opaque stonelike module – Nonrectangular cross-section

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Details

52603, 52604, 52606, 165 91, 165 92, 165 94, E04C 204

Patent

active

056343132

ABSTRACT:
The invention relates to a cylindrical, refractory, hollow brick having tapered wall surfaces in the corner region.

REFERENCES:
patent: 2157017 (1939-05-01), Rice
patent: 2221416 (1940-11-01), Tau
patent: 4436144 (1984-03-01), Horak
patent: 4540039 (1985-09-01), Karl
patent: 4589474 (1986-05-01), Horak et al.
patent: 4768578 (1988-09-01), Sulit
patent: 4997308 (1991-03-01), Welling, Jr.
patent: 5513475 (1996-05-01), Schaf et al.

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