298197

Information

• Patent Grant
• 298197

• References
• Source

• Patent Number

  298,197

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1884
  140 years ago

• CPC

  • G04B37/082 - without special hermetic sealing pieces

• US Classifications

  • 368 - Horology: time measuring systems or devices