1688539

Information

• Patent Grant
• 1688539

• References
• Source

• Patent Number

  1,688,539

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1928
  96 years ago

• CPC

  • G01G19/41 - using mechanical computing means
  • Y10S177/02 - Digitizers mechanical

• US Classifications

  • 235 - Registers
  • 177 - Weighing scales