All Patents in class 33/450


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All Patents in class 33/450
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	393,290	Nov. 20, 1888	A.C. Both	Scale divider and section liner
	471,428	Mar. 22, 1892	L. Miller	Combined Section Liner and Protractor
	1,529,209	Mar. 10, 1925	J.W. Parker	Protractor