1158854

Information

• Patent Grant
• 1158854

• References
• Source

• Patent Number

  1,158,854

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1915
  109 years ago

• CPC

  • B43K29/093 - with calculators
  • Y10S116/02 - Corrections by cursor lines

• US Classifications

  • 235 - Registers
  • 116 - Signals and indicators
  • 359 - Optical: systems and elements