1890827

Information

• Patent Grant
• 1890827

• References
• Source

• Patent Number

  1,890,827

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1932
  92 years ago

• CPC

  • B24B49/045 - Specially adapted gauging instruments
  • Y10S33/11 - Materials

• US Classifications

  • 033 - Geometrical instruments
  • 451 - Abrading