2725634

Information

• Patent Grant
• 2725634

• References
• Source

• Patent Number

  2,725,634

• Date Filed

  Not available

• Date Issued

  Tuesday, December 6, 1955
  69 years ago

• CPC

  • B25H7/005 - for pipes
  • B43L11/041 - by means of a compass

• US Classifications

  • 033 - Geometrical instruments