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Patents for Alfred Hitchcock
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
150,625May 05, 1874J.A. Ferson, G.F. SimondsTempering and Forming Articles of Steeltool making machines
151,167May 19, 1874G.F. SimondsImprovement in Tempering Ovens for Steel and Irontool making machines
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