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  1. Laser Beam Automatic Grade-Control System

    https://fabe.osu.edu/node/1376

    operator using a sight bar with a series of targets place at 50 to100 foot intervals. Now, continuous ...

  2. Slow Moving Vehicle Sign

    https://fabe.osu.edu/node/1377

    introduction of the SMV emblem was at a University of Iowa Invitational Safety Seminar in 1962. Carlton Zink of ...

  3. Operation

    https://fabe.osu.edu/node/1789

    English Español Português हिंदी 中國的 русский   ...

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