San Francisco : Architect and Engineer, Inc · leaf 157
When writing to Advertisers please mention this magazine. 154 THE ARCHITECT AND ENGINEER … Western Safety Switches Manufactured by Western Safety Manfg. Co. inc. Enclosed Externally Operated SafetySwitches, Knife Switches, Metal Switchand Cut Out Boxes, Safety Switch Boards Office, 247 Minna Street SAN FRANCISCO Telephone, Sutter 3008
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