3685727

Information

• Patent Grant
• 3685727

• References
• Source

• Patent Number

  3,685,727

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1972
  52 years ago

• CPC

  • G06G1/0068 - for conversion from one unit system to another
  • G06G1/08 - with circular or helical scales

• US Classifications

  • 235 - Registers
  • 434 - Education and demonstration