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Patents for Alvan A. Simonds
Patents 1 - 2 of 2
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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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