2831251

Information

• Patent Grant
• 2831251

• References
• Source

• Patent Number

  2,831,251

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1958
  66 years ago

• CPC

  • B43L11/045 - with cords or like flexible elements

• US Classifications

  • 033 - Geometrical instruments