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Patents for J. S. Hellewell
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
873,667	Dec. 10, 1907	G.M. Hinkley	Edger	circular ripsaws
879,265	Feb. 18, 1908	G.M. Hinkley	Adjustable box or bearing	circular ripsaws

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