Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 410
Recordiiiji i iiv niiuiiifieis.For all commercial ranges of temperature from 60 de-grees below zero to 800 degrees F. More tlian 20,000 havebeen sold for use for hundreds of different purposes. … Higli-l{4;sista.;n.This portable PjTometer Liettric r^ruiu^itr.for temperatures up to 3,000degrees F., or a range of about eighteen milli-volts. is oneof the high-resistance t.vpe and it is used with more than100 ohms in ciixiuit.
Architecture · Building · Construction industry · Engineering
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