San Francisco : Architect and Engineer, Inc · leaf 498
amaged, it isonly a few moments work to slipout the damaged plate and inserta new one. Great versatility in the use ofthe STEELOK conveyor belt isclaimed by the manufacturer. WATCH DOG STARTER A new Watch Dog starter for15 and 20 watt fluorescent lamps,especially suitable for commercialand… … moisture invasion Moisture molecules move with relentless action from hot to cold aj-eas.These massed forces of vapor surround refrigerated rooms and con-stantly work toward penetrating the cold interior. They pass throughwarm walls and make insulation wet, soggy and valueless. Thats why BROWNSKIN…
Architecture · Building
Internet Archive · Public Domain Mark 1.0. Free to use for anything.