The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 116
ly simple indesign, and will operate a steam-valvequickly and positively, or a mixingdamper, such as shown in the accom-panying illustration, with graduatedaction if desired. The mixing damper >«., that the damper will supply the required amo ,„t ot h„ra ,cl moered The control and supply of… … Dcwrc
Architecture · Building
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