1772932

Information

• Patent Grant
• 1772932

• References
• Source

• Patent Number

  1,772,932

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1930
  94 years ago

• CPC

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

• US Classifications

  • 451 - Abrading
  • 206 - Special receptacle or package