190427 ⎘
Digital computers in general ; Data processing equipment in general using a plugboard for programming Tabulators
Sub-classes:Backward compatibility through use of spoof clock and fine grain frequency control
#2Backward compatibility through use of spoof clock and fine grain frequency control
#3Backward compatibility through use of spoof clock and fine grain frequency control
#4Backward compatibility through use of spoof clock and fine grain frequency control
#5Shopping system for tracking and tabulating costs