Powder filling machine manufacturers, particularly those based in China, Germany, Italy, and the United States, have been expanding their presence in international markets. The growth of manufacturing ...

An array of powder-metal parts. Powder metallurgy was practiced long before ancient artisans learned to melt and cast iron. Egyptians made iron tools using PM techniques back in 3,000 B.C. The ancient ...

SALISBURY — It was U.S. Patent No. 2,628,465, and it changed the life of Ralph Penley Sr. “It’s a mechanical marvel, what he did,” grandson Bill Penley says today. Back in the early 1950s, Ralph ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Patent model for Mark S. Palmer, ...