2961767

Information

• Patent Grant
• 2961767

• References
• Source

• Patent Number

  2,961,767

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1960
  63 years ago

• CPC

  • G06G3/08 - for integrating or differentiating

• US Classifications

  • 033 - Geometrical instruments
  • 235 - Registers
  • 346 - Recorders