Patents Granted on 1802-12-22


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Patents Granted on 1802-12-22
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
412X	Dec. 22, 1802	J. Nichols, E. Chapman, D. Pettibone	Manner of Welding Cast Iron to Steel	blacksmith
GB-180,202,673	Dec. 22, 1802	M. Billingsley	Machine for boring cylinders	vertical boring mills