All Patents in class 353/40


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All Patents in class 353/40
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	1,928,001	Sep. 26, 1933	C.E. Ruf, L.G. Spealman, P.D. Ritchey, E.H. Aldeborgh	Projection Indicator Measuring Instrument
	2,224,281	Dec. 10, 1940	G.D. Webber	Measuring Instrument