1893909

Information

• Patent Grant
• 1893909

• References
• Source

• Patent Number

  1,893,909

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1933
  92 years ago

• CPC

  • G04B5/002 - by moving of parts of the clockwork which are not primarily for winding up

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology