1245144

Information

• Patent Grant
• 1245144

• References
• Source

• Patent Number

  1,245,144

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1917
  107 years ago

• CPC

  • B41J29/19 - with reflectors or illuminating devices

• US Classifications

  • 400 - Typewriting machines
  • 359 - Optical: systems and elements