© Thorne Films, Inc.; 25Oct71; MP22261.
COMPARATIVE ECONOMIC SYSTEMS. See
THE AMERICAN ECONOMY SERIES (FILMSTRIP)
COMPARATIVE PATHOGENIC BACTERIOLOGY (Filmstrip) W. B. Saunders Co. 2 filmstrips (pt. 1, 60 fr.; pt. 2, 52 fr.), color, 35 mm. With manual, 13 p.
Credits: By Theodore T. Kramer.
© W. B. Saunders Co.; 27Jun72; A347852.
THE COMPLETE POWER SUPPLY. Pt. 1: Halfwave rectifier; capacitor filter. ADM-MPS. Released by Thorne Films. 2 min., si., color, Super 8 mm. Loop film.
Credits: Producers, Alexander Jackson & Kenneth Osborne.
© Thorne Films, Inc.; 30Sep71; MP22175.
THE COMPLETE POWER SUPPLY. Pt. 2: Fullwave vacuum tube rectifier; π filter. ADM-MPS. Released by Thorne Films. 3 min., si., color, Super 8 mm. Loop film.