1893882

Information

• Patent Grant
• 1893882

• References
• Source

• Patent Number

  1,893,882

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1933
  92 years ago

• CPC

  • A63H33/3066 - Watches or clocks
  • G04B33/00 - Calibers

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 434 - Education and demonstration
  • 968 - Horology