1297037

Information

• Patent Grant
• 1297037

• References
• Source

• Patent Number

  1,297,037

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1919
  106 years ago

• CPC

  • G06C7/04 - Interlocking devices

• US Classifications

  • 235 - Registers
  • 400 - Typewriting machines