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All Patents in class 235/70A
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
815,509	Mar. 20, 1906	E.W. Campagna	Measuring Instrument	lumber rules
1,145,042	Jul. 06, 1915	J.M. Spitzglass	Calculating Device	scales
1,145,706	Jul. 06, 1915	E.D. Schulte	Computing Rule	lumber rules

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