2631386

Information

• Patent Grant
• 2631386

• References
• Source

• Patent Number

  2,631,386

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1953
  71 years ago

• CPC

  • A63H33/3066 - Watches or clocks

• US Classifications

  • 434 - Education and demonstration
  • 446 - Amusement devices: toys