1428902

Information

• Patent Grant
• 1428902

• References
• Source

• Patent Number

  1,428,902

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1922
  102 years ago

• CPC

  • G04B37/144 - Fixation on flat support

• US Classifications

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