Patents Granted on 1837-07-19


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Patents Granted on 1837-07-19
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
286	Jul. 19, 1837	B. Langdon	Mode of applying horse or other animal power to propelling machinery	animal powered apparatus
287	Jul. 19, 1837	J. Ericsson, F.B. Ogden	Sounding instrument for ascertaining the depth of water in seas, rivers, &c.	nautical apparatus