2132051

Information

• Patent Grant
• 2132051

• References
• Source

• Patent Number

  2,132,051

• Date Filed

  Not available

• Date Issued

  Tuesday, October 4, 1938
  86 years ago

• CPC

  • G04B37/125 - allowing note taking

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 116 - Signals and indicators
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology