San Francisco : Architect and Engineer, Inc · leaf 374
uJiMJi^jj^mm PREVENT FIRES and EXPLOSIONS(^umd^ EARTHQUAKES! SAFETY ENGINEERS and srie.itists saythe Sentinel is the mosi accurate and de-pendable earthquake actuated shut - offvalve in the world!* On the job 24 hours A record of more than 10 yereliable service . . . provenperiod which included two… … AUTOMATIC GAS SHUT-OFF VALVE Designed tu shut off automalicaily when(heres an earth shock or explosion suffi-cient to damage buildings or pipe lines.Listed by the Underwriters Laboratories andspecified by leading architects and engineersn in schools, fire slalions. factories,I theaters, churches,…
Architecture · Building
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