2502039

Information

• Patent Grant
• 2502039

• References
• Source

• Patent Number

  2,502,039

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1950
  74 years ago

• CPC

  • B43L7/08 - with arrangements for attaching additional drawing equipment
  • G01B3/006 - having both coarse and fine graduation
  • G01G23/206 - special graduated scales therefor

• US Classifications

  • 033 - Geometrical instruments
  • 235 - Registers