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Up: Patent Index 		206,332 · Hyatt · "Improvement in the Application of Cements, Clays, Metals and Glass in forming Illuminated or Other Gratings, Vault-Covers, Roofs, &c."· Page 7
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206,332: 8 of 14

railings, gratings, guards, &c., substantially as herein set forth.
    34. Beam-flange protectors, and the means of fastening the same by bolts extending up into the arches of through the ceiling, substantially as herein set forth.
    35. Fire-proof ceiling and floor construction 		by combination of ceiling-slab, flange-protectors, and floor-surface with iron beams, substantially as herein set forth.
THADDEUS HYATT.
Witnesses:
    A. MOORE,
    H. E. BATES.