Patents Granted on 1812-01-16


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Patents Granted on 1812-01-16
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,647X	Jan. 16, 1812	M.B. Belknap	Machine for cutting files	files
1,648X	Jan. 16, 1812	J. Mathes, G. Trumball, G. Brewster	Machine for spinning cotton, etc.	spinner