2240226

Information

• Patent Grant
• 2240226

• References
• Source

• Patent Number

  2,240,226

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1941
  83 years ago

• CPC

  • G06G1/0073 - for commerce, bank or invoicing
  • G06G1/14 - in which a straight or curved line has to be drawn from given points on one or more input scales to one or more points on a result scale

• US Classifications

  • 235 - Registers
  • 434 - Education and demonstration