1931811

Information

• Patent Grant
• 1931811

• References
• Source

• Patent Number

  1,931,811

• Date Filed

  Not available

• Date Issued

  Tuesday, October 24, 1933
  91 years ago

• CPC

  • G04B27/083 - which may be used for winding when changed form the normal position

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 200 - Electricity: circuit makers and breakers
  • 248 - Supports
  • 968 - Horology