Patents for N. Frank


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Patents for N. Frank
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
122,215	Dec. 26, 1871	N.F. Beckwith	Improvement in head-blocks	sawmill headblocks
155,408	Sep. 29, 1874	N.F. Beckwith	Improvement in head-blocks for sawmills	sawmill headblocks