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Patents for Benjamin Hall
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,229XMar. 08, 1810B. HallShip carpenter's boring machinesdrilling and boring
1,230XMar. 08, 1810B. HallMitre point borerdrilling and boring
2,126XMay 13, 1814B. HallStill and condenser
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