1291336

Information

• Patent Grant
• 1291336

• References
• Source

• Patent Number

  1,291,336

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1919
  106 years ago

• CPC

  • G04B39/004 - from a material other than glass

• US Classifications

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