Hjalmar G. Carlson
American metal worker and inventor / From Wikipedia, the free encyclopedia
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Hjalmar Gotfried Carlson (1879 - c. 1930s[1]) was an American sheet metal worker, expert in metal drawing, superintendent, and inventor, who worked in Worcester, Massachusetts.[2] He is known for being awarded the first ASME Medal in 1921, and the first Holley Medal in 1924.[3]