1825143

Information

• Patent Grant
• 1825143

• References
• Source

• Patent Number

  1,825,143

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1931
  93 years ago

• CPC

  • G06C11/08 - with punching mechanism
  • G06C15/12 - having pin carriage

• US Classifications

  • 235 - Registers