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Hammer, William Joseph, 1858-1934
http://n2t.net/ark:/99166/w6gx68gb (person)
Hammer was an inventor and consulting engineer with broad ranging interests in science and technology. He began his career as an assistant in Edison's Menlo Park Laboratory and progressed through various sites of involvement in projects from incandescent lighting to wire recording. From the description of William J. Hammer Collection, ca. 1874-1935; 1955-1957. (Unknown). WorldCat record id: 81179745 ...
