e laying out Railway rails, device for preventing spread- of angles. It is ing of, J. Larivee ... ^ 903,485 Instantly adjusta- Railway road bed, W. H. Coffman 903,174 ble to any degree, and has a vernier reading to five Railway switch, J. R. Goode 903.562 minutes. It is so arranged that all parts… … Scale chart, H. S. Hallwood 903,711 crete are given. Screw driver, C. V. Dodd 903,549 Scientific American Supplements 1568 and 1569 The Sealing and opening device for cartons, E. present a helpful account of the making of H. Ungemach 903.341 concrete blocks by Spencer Newberry. Segregation, A.…
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