prov:value
| - It will, 0 course, be understood that the copper, or other coating, is very thin and the ,thickness of the coating is much exaggerated in the drawin v T he link so formed with the bearing surfaces only exposed is then subjected to a carburizing-process by embedding the same in contact with bone, charcoal, gas, or other suitable carburizing material 12, so that the bearing surfaces of the link, and
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