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GA21-9124-1_3505_Card_Reader_and_3525_Card_Punch_Subsystem_Mar71.pdf 5020408
GA21-9124-5_3504_3505_3525_Card_Reader_Punch_Subsystem_Oct74.pdf 7156231
GC21-5097-0_OS_and_OS_VS_Programming_Support_for_the_IBM_3505_Card_Reader_and_IBM_3525_Card_Punch_Jul73.pdf 2047923