1973626

Information

• Patent Grant
• 1973626

• References
• Source

• Patent Number

  1,973,626

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1934
  90 years ago

• CPC

  • B24B5/12 - for grinding cylindrical surfaces both externally and internally with several grinding wheels
  • B24B5/185 - for internal surfaces

• US Classifications

  • 451 - Abrading
  • 125 - Stone working