San Francisco : Architect and Engineer, Inc · leaf 509
us, using voltages as high as 60,000 whichalso produces undesirable ozone and nitrous oxides. Although we had known for a long time that nega-tive air ions have a therapeutic effect on human healthand that positive ions had the opposite effect, we knewthe importance of establishing the facts by… … Residence of Mr. and Mrs. Donald G. FrenchDonald G. French, Architect, San Jose, Cal. ALUMINUM OR STEEL SLIDING DOORS • Arislide Aluminum Sliding Windows and Doors provide a full view withcomplete ventilation . . . are weatherstripped and can be used for newconstruction or remodeling. • Tubular…
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