2877950

Information

• Patent Grant
• 2877950

• References
• Source

• Patent Number

  2,877,950

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1959
  66 years ago

• CPC

  • B43L13/001 - Mathematical drawing instruments

• US Classifications

  • 235 - Registers
  • 033 - Geometrical instruments