San Francisco : Architect and Engineer, Inc · leaf 106
r Concealed DoorCheck and Closer fulfills the most rigidrequirements of architects and buildersof modem structures.The check is invisible, consequentlydoes not mar the beauty of an artisticroom or lobby. It can not collect dustand dirt, an important factor in theequipment of schools and… … THE CONDOR CO« 58 Sutter StreetSan Francisco, Calif. 132 The ARCHITECT „nd ENGINEER April, 1930
Architecture · Building
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![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-287-74.webp)