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Up: Patent Index 		271,854 · Ingalls · "Illuminating Roofs, &c." · Drawing 1
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271,854: 4 of 5

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First: 8,058X · Rockwell · "Vault Light" · Drawing Last: 397,371 · Deutsche Glasbau-Gesellschaft · "Improvements in Moulds for use in the Construction of Floor Slabs, Wall Panels, Pavement Lights, Windows and the like of Glass Framed in Ferroconcrete" · Drawing Prev: 270,132 · Ross · "Illuminating-Tiling for Vaults, &c." · Drawing Next: 271,854 · Ingalls · "Illuminating Roofs, &c." · Drawing 2 Navigation
Drawings: 172 of 667 		271,854 · Ingalls · Illuminating Roofs, &c.