3420438

Information

• Patent Grant
• 3420438

• References
• Source

• Patent Number

  3,420,438

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1969
  56 years ago

• CPC

  • G06C21/04 - Conditional arrangements for controlling subsequent operating functions
  • G06C11/02 - with visual indication
  • G06C15/04 - Adding or subtracting devices
  • G06C15/26 - Devices for transfer between order

• US Classifications

  • 235 - Registers