1400083

Information

• Patent Grant
• 1400083

• References
• Source

• Patent Number

  1,400,083

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1921
  103 years ago

• CPC

  • G04B37/087 - Protection of wrist or pocket watch cases against dust

• US Classifications

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