1892634

Information

• Patent Grant
• 1892634

• References
• Source

• Patent Number

  1,892,634

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1932
  92 years ago

• CPC

  • G06G1/04 - characterised by construction
  • G06G1/045 - with scales borne by bands

• US Classifications

  • 235 - Registers