All Patents in class 209/188


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All Patents in class 209/188
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	9,295X	Dec. 28, 1835	J. Curtis	Amalgam mills for separating gold from the ore
	48,030	May 30, 1865	H.H. Scoville, Jr.	Improved amalgamator