San Francisco : Architect and Engineer, Inc · leaf 525
S;^rETY TREKD … ECONOMY STRENGTH Bois System of InterlockingTread and Riser i.BOLT METAL STAIR CONSTRUCTION Using Interlocking Treadsand Risers ARE USED IN ALL TYPES OF BUILDINGS Full Information and Estimates Furnished Manufactured by UNITED STATES METAL PRODUCTS CO. 330 Tenth Street, San Francisco, Cal. HaUSer…
Architecture · Building
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