San Francisco : Architect and Engineer, Inc · leaf 67
Municipal specifications fordrain lines from school laboratories andchemistry rooms Pacific Foundry Company Ltd.Pacific Metals Company Ltd. 470 East Third St.LOS ANGELES 3100 Nineteenth St.SAN FRANCISCO 551 Fifth Ave.NEW YORK ^ NOW! Qp A Haws Drinking Fountain rj (Model 2 H - Compression) t^^ for… … 6. Safe Use of Electricity in Industry: PortableElectrical Equipment; Safety Switches—TheirApplication. Operation and Maintenance; TheUse of Low Voltage in Hazardous Locations; ThePhysiological Effects of Electric Shock. 7. Falls of Persons: Ladder Accidents andTheir Prevention; Safe Walkway…
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