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Patents for Joseph Curtis
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	9,295X	Dec. 28, 1835	J. Curtis	Amalgam mills for separating gold from the ore
	9,296X	Dec. 28, 1835	J. Curtis	Amalgam mills for separating gold from the ore
	9,297X	Dec. 28, 1835	J. Curtis	Amalgam mills for separating gold from the ore

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