2421681

Information

• Patent Grant
• 2421681

• References
• Source

• Patent Number

  2,421,681

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1947
  77 years ago

• CPC

  • B41J29/24 - Word counters

• US Classifications

  • 235 - Registers
  • 101 - Printing
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
  • 400 - Typewriting machines