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Patents for Mary M. Magraw
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
817,991	Apr. 17, 1906	T.S. Ross	Bevel Square
818,051	Apr. 17, 1906	T.S. Ross	Bevel-square rule
842,585	Jan. 29, 1907	T.S. Ross	Drafting Attachment

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