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American mechanical engineer (1944–2017)
J. Karl Hedrick (* 26. August 1944; † 22. February 2017 in Berkeley) was an american mechanical engineer. He was 72 years old. His education included Stanford University and University of Michigan. He worked at Massachusetts Institute of Technology and University of California, Berkeley. His awards include Fellow of the American Society of Mechanical Engineers and Rufus Oldenburger Medal. His cause of death was lung cancer.