Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 410
rs post of duty and a recorder in-stalled in the office of the superintendent or foreman.This combination indicating and recording unit of BristolPyrometers, as shown above, provides for both these re-quirements and many such oirtfits are in service, as-, forinstance, in connection with heat…
Architecture · Building · Construction industry · Engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
