Light for evening hours : heat and light, part II. (1890)
Detroit Heating & Lighting Co. · Detroit Heating & Lighting Co. · leaf 15
gas gives off sufficient •_- odor to be readily de-tected. It is far lessinjurious when inhal-ed than coal _ The absolute safetyof our machine will l>e realized when westate that during over211 years use of thous-ands of machines, noaccident has ever oc-curred. DUEABILIT* machinery connected…
Lighting · Light fixtures · Electric lighting
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