Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 703
ingthrough. Fig. B shows our wooden beveled threshold which con-nects lower ends of doorframe and forms a part of it, let STEVENSONS AUTOMATIC DOOR FORdown into floor. No jolt, no feather edge, no splinters. For REFRIGERATING AP.^RTMENTSwarehouses, accommodates trucks. Fastens and Tightens Itself…
Building materials
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