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Patents for Heman Mathews
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,376X	Sep. 12, 1815	H. Mathews	Finishing wire-necked buttons	button making machinery
2,377X	Sep. 12, 1815	H. Mathews	Machine for making wire-necked metal buttons	button making machinery

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