Improved Device for Centering Saws. RAND'S DEVICE FOR CENTERING SAWS. English Workmen Coming to America. Sharp Shearing., scientific american, 1866-05-05

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Improved Device for Centering Saws. RAND'S DEVICE FOR CENTERING SAWS. English Workmen Coming to America. Sharp Shearing., scientific american, 1866-05-05

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