Index of /pdf/burroughs/Military/D_Machine/patents
       _______________________________
       
   DIR /pdf/burroughs/Military/D_Machine
       3878514_LSI_Programmable_Processor_1972.pdf
       3972024_Programmable_Microprocessor_1974.pdf
       3972025_Expandable_Memory_Paging_for_a_Programmable_Microprocessor_1974.pdf
       3986094_Logic_for_Tilt-Ball_Control_1974.pdf
       4190821_Self-Healing_Loop_Communications_System_1978.pdf
       4287592_Multiloop_Communications_Interface_1979.pdf
       4384202_Track_Controller_for_a_Document_Processor_1980.pdf