2570740

Information

• Patent Grant
• 2570740

• References
• Source

• Patent Number

  2,570,740

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1951
  73 years ago

• CPC

  • A63H33/3066 - Watches or clocks

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 446 - Amusement devices: toys