481809

Information

• Patent Grant
• 481809

• References
• Source

• Patent Number

  481,809

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1892
  132 years ago

• CPC

  • G04B37/087 - Protection of wrist or pocket watch cases against dust
  • G04B37/0025 - with cover or bottom with a spring (savonette) bench watches opening or closing with spring action G04B37/0463

• US Classifications

  • 368 - Horology: time measuring systems or devices