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Patents for Isaac B. Hartwell
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
681Apr. 07, 1838R. DanielsCrosscut eclipse shearing-machine for shearing woolen clothscloth shearing machines
13,169Jul. 03, 1855I.B. HartwellMachine for cutting cavities spherical, ellipsoidal, &c.wood lathes
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