Patents Granted on 1810-02-21


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Patents Granted on 1810-02-21
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
1,218X	Feb. 21, 1810	N. Shaler	System of signals for vessels
1,219X	Feb. 21, 1810	M.L. Morse	Pendulum scale
1,220X	Feb. 21, 1810	E. Raymond	Cheese press	cheese press