2807881

Information

• Patent Grant
• 2807881

• References
• Source

• Patent Number

  2,807,881

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1957
  67 years ago

• CPC

  • B25B5/107 - Blocks therefor

• US Classifications

  • 269 - Work holders
  • 033 - Geometrical instruments