1634990

Information

• Patent Grant
• 1634990

• References
• Source

• Patent Number

  1,634,990

• Date Filed

  Not available

• Date Issued

  Tuesday, July 5, 1927
  97 years ago

• CPC

  • G06C23/04 - of pin carriage
  • G04B3/06 - Keys or the like with means preventing overwinding

• US Classifications

  • 235 - Registers
  • 968 - Horology