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All Patents in class 220/638
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
396,974	Jan. 29, 1889	E. Barrath	Coal-hod
396,975	Jan. 29, 1889	E. Barrath	Coal-hod
397,047	Jan. 29, 1889	E. Barrath	Coal-hod

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