1390848

Information

• Patent Grant
• 1390848

• References
• Source

• Patent Number

  1,390,848

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1921
  103 years ago

• CPC

  • G04B21/027 - with locking wheel

• US Classifications

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