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All Patents in class 72/438
Patents 61 - 62 of 62
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NumberDatePatenteeTitleType
4,653,300Mar. 31, 1987C.J. Crout, C.W. Frame, R.N. HarrisAdaptive, self-regulating forging hammer control systemdrop hammers
5,715,724Feb. 10, 1998C.J. Crout, R.N. HarrisAdaptive, self-regulating forging hammer control systemdrop hammers
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