Mechanical Union of Metals

1854 Scientific American  
31i6 �nbtntiJ)ns+ Mechanical Union of Metal .. There are several sorts of manufactures in which processes for the union of two or more pieces of metal in mechanical contact are in dispensable, and ill which the need of improv
doi:10.1038/scientificamerican07221854-356 fatcat:ks5y3clzkfbjdjgddrxor54foq