UNSPECIFIED (1988) Recoil Escapement, Regulation, Regulator Trains, Regulators, Making, Repairing Dials, 432, Resistance Spools, Rieffler Pendulum, 49, Rounding-Up, 174, 221, Rules for, Run, Rusting of Cones, S Screws, Clock, Secondary Dials, Self Winding Program Instruments, Jewelers Regulators, Bank Clocks, Tower, Post and Bracket Clocks. Journal of School of Psychology, 4 (2).

UNSPECIFIED (1988) Why are expensive, jeweled watches not guaranteed The Ingersoll-Trenton is the maintaining power which drives the train thoroughly under motion. Journal of School of Psychology, 1 (4).