1857642

Information

• Patent Grant
• 1857642

• References
• Source

• Patent Number

  1,857,642

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1932
  92 years ago

• CPC

  • G06C11/12 - for feeding tape

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 400 - Typewriting machines