1659357

Information

• Patent Grant
• 1659357

• References
• Source

• Patent Number

  1,659,357

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1928
  97 years ago

• CPC

  • G06G3/04 - for performing multiplication or divisions
  • B43K29/093 - with calculators

• US Classifications

  • 235 - Registers