1839468

Information

• Patent Grant
• 1839468

• References
• Source

• Patent Number

  1,839,468

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1932
  93 years ago

• CPC

  • G03B21/134 - Projectors combined with typing apparatus or with printing apparatus
  • Y10S200/11 - Web or thread actuated

• US Classifications

  • 178 - Telegraphy
  • 200 - Electricity: circuit makers and breakers
  • 226 - Advancing material of indeterminate length
  • 400 - Typewriting machines