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Patents for Percy H. Root
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
908,142	Dec. 29, 1908	P.H. Root	Lawn Mower Grinder	tool grinders
1,077,306	Nov. 04, 1913	P.H. Root	Grinding Machine	sharpeners
2,069,097	Jan. 26, 1937	P.H. Root	Knife grinder	sharpening machines

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