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All Patents in class 431/153
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	404,830	Jun. 11, 1889	W.F. Folmer	Gas Burner
	419,651	Jan. 21, 1890	W.F. Folmer	Gas Burner
	419,652	Jan. 21, 1890	W.F. Folmer	Gas Burner

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