2134928

Information

• Patent Grant
• 2134928

• References
• Source

• Patent Number

  2,134,928

• Date Filed

  Not available

• Date Issued

  Tuesday, November 1, 1938
  86 years ago

• CPC

  • G06G1/00 - Hand manipulated computing devices
  • G06G1/0015 - for computing periodic phenomena

• US Classifications

  • 235 - Registers
  • 040 - Card, picture, or sign exhibiting