Chicago : Engineering and Contracting Pub. Co. · leaf 952
Steam or Air Made in different sizesfor all kinds of driving fromthe heaviest concrete pilesand steel sheeting to thelightest wood and steelsheeting. Note the absence of boltsin its construction, therebeing two only in the en=tire movable workingparts; also note that al=though well protected,…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
