New York [etc.] Simmons-Boardman Pub. Co. [etc.] · leaf 76
adapted t o face-plates 30 in. to 40 in. diameter, the 12 in. forlarger plates and for the heaviest work. The jawsmay be put on and taken off the plate very easily,one man doing the work alone, without the use oftackle of any kind, a great advantage over thehandling of a large chuck. The Cushman…
Railroads · Railroad cars
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