Carpenters' work. Ninth ed., 1918

Carpenters' work. Ninth ed., 1918

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The operation of the door is indicated by the fourteen diagrams shown in Fig. 393 . The first seven diagrams show the standard revolving doors and the last seven the automatic collapsible, panic-proof revolving doors. The first seven diagramsanbsp;...

Title:Carpenters' work. Ninth ed., 1918
Author:Frank Eugene Kidder
Publisher: - 1918


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