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1973, 1974 - Automatic Message Accounting Brochures (4)

AMA = Automatic Message Accounting
1. LAMA-C (Local AMA- C)?? Minicomputer Technology for No.5 Crossbar - April 1974
2. CAMA-C (Centralized AMA)? for Crossbar Tandem and No.4 Crossbar - Nov 1973
3. AMARC (AMA Recording Center) for Electromechanical Offices, AMA System Application Table
4. AMARS (AMA Recording System) - Nov 1973

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