Patents Granted on 1811-03-30


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Patents Granted on 1811-03-30
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,482X	Mar. 30, 1811	J. Boynton	Machine for stringing and grinding cards	spinner
1,483X	Mar. 30, 1811	C. Alger	Mode of Casting Large Iron Rollers for Rolling Iron	rolling mills