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Patents for Frank G. Chapman
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
100,502	Mar. 08, 1870	F.G. Chapman	Improvement in mortising machines	mortising machines
107,222	Sep. 13, 1870	F.G. Chapman	Improvement in machines for tenoning window-sash	tenoning machines

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