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Patents for H. Chapin's Son
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	134,729	Jan. 14, 1873	J.W. Butler	Twist-Lock Marking Gage
	465,664	Dec. 22, 1891	M. Hogarty	Rule
	630,100	Aug. 01, 1899	J.F. O'Neil	Combination Rule

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