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UNSPECIFIED (1963) Mean, To Draw Anchor Escapement, Angular Measurement, Peculiarities of, Apparent Time, Mean Time, Measuring Wheels, Measurement, Angular, Mechanical Elements, Mercurial Pendulums, 53, 60, Sidereal, Torsion, Perpetual Calendar, Phases of the work. Journal of School of Humanities, 3 (1).